{
  "manageEntity": {
    "action": "Update",
    "entityId": "237765871",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd7811082f7798d027e314b83679ef67abf28a80171aec541edfb4cf858acaab7",
    "signature": "0x4ce5aec6f7d8134c3d4573c7f8d32968e8b1652e9a728a6b7c8c533e8e81133f014d3c5ba7d31bc7f3bf518675c4a115e4b997d61559723825e5637857d64a2e1c",
    "signer": "0x8c716F932726b40bC9E1CEC18f2c93dc876da1Dc",
    "userId": "237765871"
  }
}