{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "884320631",
    "entityType": "User",
    "nonce": "0x6bad357ef76a59e6769c1220422fa4f1a09841b90f2e917619101a17c480ac75",
    "signature": "0xa2c401ff8a0dac1de64c22b5596502ce88a565e06a7fd54aa62b7973e14210371645919daf44781b71494b251fc6ed12d6532c5088ee529a56823f3919c631821b",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}