{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x7330695e6a38f80cca587c387acae39a7a93c090f3579f660f90623aca5dc70a",
    "signature": "0x0a35a37dd88a363501926aed0f0298f3128fa68b6b250555c7353adc4607fa6570462b9daf935171e6f380febdac0d16a52764f7054e2ba77c1fc73543308b431b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}