{
  "manageEntity": {
    "action": "Update",
    "entityId": "823504182",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4aac1a9a1102a4ed33968504878ee5ae61016401c68d5ccaa60ed950a68ed617",
    "signature": "0x728457345af543367ab80de5a615da1ab482f0bc05acae3a81b3b7163dcf84144935df54a3cc10dbdb5b352a1541e2a7b9caab5441afa86e0979f503962f47951c",
    "signer": "0x5E7423d87395641C871314CA5efA9A3c5A5fb3d1",
    "userId": "823504182"
  }
}