{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271487803",
    "entityType": "User",
    "nonce": "0x54f1a35f87d2c82015af955c0c5706ea9673ddc0cd8712d9a675005dd34744eb",
    "signature": "0xbe1e2c4d994c14800e57d40acd652ad906d1e48fe60cd7d596457565dc8da2e141b1ff7553939fddb860e8d6473e680cdfbcedc0bc668ba127dd5574a2dc4f6b1b",
    "signer": "0xE747BA2977A352487fE1B7C949D4127ffD2F4246",
    "userId": "156355742"
  }
}