{
  "manageEntity": {
    "action": "Update",
    "entityId": "366953361",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xefeb45e39a3a3af26d515c039323398e3874fb900205235f7d1485c5a45a3c0e",
    "signature": "0x16006015db4226021ae46178d3775cff328a52f776d6da7cce1c239cee2094ed31aafc1e42914ec3cbb24d6025a268f22d679c5e994f87c57e6507aea8b8b6641c",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}