{
  "manageEntity": {
    "action": "Update",
    "entityId": "244185943",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13b5405f1d167d5eb4678b0429c4aec7a0fb557f4d3ee291dee015f4b86ee71b",
    "signature": "0xb08628c435caefafda15d4d40e9df2c0c37a05bcd271a32d13bd1b0eb0703a5e22e1752474fe8953a7ef5aa5148a9c7b378845cb1cdc3e14a46afa70060a02e61b",
    "signer": "0x4Fef2Caf2470ed5C7FD86Eed7226B5432746C7fc",
    "userId": "244185943"
  }
}