{
  "manageEntity": {
    "action": "Update",
    "entityId": "220230236",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakk5bnm7xr6hoczytchcncg7nbrtlurlusw3x23smv2utw3m6mtsq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":479886058}]}}}",
    "nonce": "0x0500c5e53bf3f8ebe0b5b9ff4fd99a8071b1ebfd618a5f9a6400e2a5d3ef74f5",
    "signature": "0xfbb1544bc8976e9255c366b6ff49b131b41ca8177cc1cdb0a1ce77eab1c739c11114faeed97d758f15439644b97f343c39fba2e62b1630c04e832efc387f81481c",
    "signer": "0xea79EEd60D97517387a63Acc5fd3BeE2227F1658",
    "userId": "220230236"
  }
}