{
  "manageEntity": {
    "action": "Update",
    "entityId": "962365719",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf81a9d3e7ccbf71af5503bf2ac8e06542d377b702d7ce5ea3c37bf8e28e4b825",
    "signature": "0x849d9957da52e29917e5c80d9a3bef20df5b25eaf79a3ab5bd09d887f7b275b13e44078ea4849a57bb4869399f39989da714f00b77ac52bbcf00be21e3f1c9181b",
    "signer": "0xa23b8e9fC35eb386c08D62E320B736C1AAbFe439",
    "userId": "962365719"
  }
}