{
  "manageEntity": {
    "action": "Update",
    "entityId": "961962170",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd7c973f2dc5bc095a14f0baafccb8989697a1580ba28055df60a7b0785f1c602",
    "signature": "0x446a441619dfb66ec4841fd720e67df4bea2ebda687a3c4a3ebda1e5f89c29367b3d532288cf96a5d99b66126bea539bcb133ede9a38ea1346b62fe10b21dfa91b",
    "signer": "0x5C82E373de4890D61996396fF6Fe06E1607ff0B2",
    "userId": "961962170"
  }
}