{
  "manageEntity": {
    "action": "Update",
    "entityId": "306087079",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x10a6f10d2314cf0c53649ffd14a80569c607c0b751a355cded5bfd0c7747a90f",
    "signature": "0x6024bb5c63798d7d7e5cd0029c67d24fabb3e1740dda646c608bd326397abc4f59e1a8d64e2ec65195c46348489b2d4547b74e40f85cb0219efd61fd1ae84c701c",
    "signer": "0x1b9Ea5D1276FB8020D64F5B4E19C4A795f2698D3",
    "userId": "306087079"
  }
}