{
  "manageEntity": {
    "action": "Update",
    "entityId": "962904818",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5d6536a2822d39b2558fc098bdaf5cc11b8499b6689066d62bfc92ba4c489bd4",
    "signature": "0xa29efcba00eec6844858719757e815b07b9a96b9a1793c315113a9d75422308412cd8af41364bb88522b672176cb17ae4b587f3a01641b369d869f041e8d7ae01b",
    "signer": "0xd103b6b21260dC673848EdeF10CbfDF1FF1baE00",
    "userId": "962904818"
  }
}