{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1523538",
    "entityType": "User",
    "nonce": "0x5b8d9186a9ee02b60bfe00d496be6452ff43993def97c7248433e10c5d4977eb",
    "signature": "0x6430d006c404480ac75845a63f22476ed8fb1026e51728db531df158a1c52b8432568bc865312bf0142521e0afbf4b4bee2e92a7907fdc6834aa08252ce7bcf41b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}