{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699855727",
    "entityType": "User",
    "nonce": "0x825e3211fe275f3bf225d264c5f9da530f91c7be4963d8a3e44ea44a59db5e70",
    "signature": "0xba3cf96a27bed342778e21852a32603267911309bdb82d4a99486f23afda2ced5b58307fddd48e90f1d48d51d0fdce8a868372d449be58289029f59ebdb7cb391c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}