{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x73ebdd63601d17e19ee0833228ac0719e9b5405654ff8bd69c222adba2cf5e2a",
    "signature": "0x44660fd84051e63a4acd8ee7e34320841cb75f1b471fa129a346fa145f6b0e650cd960d9560d038c0a12503b416d6080d1e37a0abf489ecec6e340fd4910390d1b",
    "signer": "0x1316A034BD6E86523D2577907eD66c0Ff0796Cf5",
    "userId": "956712395"
  }
}