{
  "manageEntity": {
    "action": "Update",
    "entityId": "111579",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazzfqhxvkqcpdee7ogxdzjywjactvfesxd67bqoath7pxtogyx3pa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":32219},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x65718176300bae6ee2480ba2d97fe6d5ae19356794d14b72e01b3bc3cc4866a7",
    "signature": "0xed50c8f0cba6d1fffdd325acaa41f52cef4322089e62563fe6cbcacff1d0b1b4099732035e637760ace1a59f1046c1e68550858c09149594f1e75bf63a1588731c",
    "signer": "0x14ab7027c19a202dbEA7a9218aa291D424d901e9",
    "userId": "111579"
  }
}