{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe97ab6c352001182e62f1fe815ba6376a768835ba934b3c287798aac731f51a9",
    "signature": "0x3a5d8a7db79c63181a37dda418579d98355e2ceb1c982e255bd9508ae10448055ee39149092a312534a4a6f74f6f85c3e71241477a7fcd1cc524cfab885466281b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}