{
  "manageEntity": {
    "action": "Update",
    "entityId": "483269989",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradmizyii7gvmmbimdhqw2fju4kwyi2ej7vq4ejo53b667zeixujaa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":711394588}]}}}",
    "nonce": "0xb17cfe16d267c517736dc930631aac698ff9ebee1904ba419c20edcbc7e18679",
    "signature": "0x9e3b6e31ddc5c17db6047a74929168e651128693242a22c2170135df4453c9d7181218a1bb149bfa654d98988334ceb2deaabbc9a9b7d6b1ffd43809913e09011c",
    "signer": "0x74cE10865978883B54924eF5Bde16e92D31A0d49",
    "userId": "483269989"
  }
}