{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0x564b0774dd3ecd375b5861669712a463dd1815a4bb91a9daae29ba5d0e0be96a",
    "signature": "0xff0374a96e9c07ed0923719705a29898d52bf3f8f30a840816113cea370cc7ad27ab8a7b17852d34870d52eb7540bfd658cf384d9d4815bfd934345914712f621b",
    "signer": "0x71cC8cEA691e8Ca617E9644Eb36f54087b0b4CEf",
    "userId": "907806071"
  }
}