{
  "manageEntity": {
    "action": "Update",
    "entityId": "489026160",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7nxthtanbeg6agp6q6otocaxkey5agbhiw3oa3pwnkfsnzqqlotq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":981899711},{\"type\":\"playlist\",\"playlist_id\":954706252},{\"type\":\"playlist\",\"playlist_id\":16773419}]}}}",
    "nonce": "0xb94e7bb18137fae9900e9dd8ecefab1a889cbcded746f8d5d06ad88e16675c25",
    "signature": "0x17631ef6c40a44dba5b41c95674f55f849e812e234ac2a0091ea00765f1b948c6adcf5a30e6b9d33c5f57c873f7c6ec371f2a5a256c895d9ea500f55ee7ae4b81c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}