{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x596b39893d83d5eaebad02f51b9d7a1cdad05f5d418f8e551a3e32da01d6b688",
    "signature": "0x5097cce18eb2bce5dc5de8ca8bb81758a3b22a17d631c90630b95562dc8381766953f599ab03fee90cdb2295858b11b4bb0aeb286bf7b5ac0da75835e9a055f81c",
    "signer": "0x799Ec86DCA9198F96113b753bBf5F1482E3375e8",
    "userId": "272153025"
  }
}