{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1887966",
    "entityType": "User",
    "nonce": "0xc2f5e87cca730ba301b1a2ffc9654bb553e52ed5a854ca60fa9b420ab40b304e",
    "signature": "0x8df219b1f1a6f8b30b81027653e7d655c99922d0671e90e6b8fece9f040268710dd7880010a415f2e2219ce97215ee513c049e0c401ceea1623b20d6b4d4b78d1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}