{
  "manageEntity": {
    "action": "Update",
    "entityId": "345155193",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahv3rfhhwo6h2xv677zr7ptifv74nkyac3asw2lcrnfsadwfbq5pa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":503383709}]}}}",
    "nonce": "0xbf97c4abe8d88e7dd419ff41ec9a4764c1ff82602819b2f5893052f3e64c59a4",
    "signature": "0x0f7655a5dd6f79c48095f4c5e4c15b63026b61b464bde528a882cc0c7ad0f6a042ab69c666bb5c6e5cccd4f8d82674110829f4208de95ed1156fe77eba5902c01c",
    "signer": "0x46705280F9B4480b7E608d0b58A224173da6dE93",
    "userId": "345155193"
  }
}