{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273050718",
    "entityType": "User",
    "nonce": "0x9da46ec93a47eb18bb003c03425ecb71ea5597ae0b6fd324b7bab0344cb8d369",
    "signature": "0xc84fd96634732b0f5286754f207c2ac2e2f899044e3ab2f00bf2fbb2829ebc9e5a418db870102cf81c60c2ee39983bb3636a148093fcc3b5a85e765bf6cad4e41c",
    "signer": "0xc00163EC4A1f48C70D0b676b7F5c071142de6C02",
    "userId": "227991193"
  }
}