{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a33c0927d99f5301dc6215c41748fa3852146b484a514133fb2cc700bd685c3",
    "signature": "0x3152eaaf4b70e2ffe2b8d30e0b08971f4da0af450c438fa747fd5743573c32ec0d65f8a3ba5eb99cbe6a19b02d0e872545cebb95ad16fda6117ecdf5036e35b01b",
    "signer": "0x6Ee7842A432b779E1Bf51F27B824fe86161cee6c",
    "userId": "408407824"
  }
}