{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0xd74762ba8b5861ec754a60835d17e3190e390ae31856060cf88425da094b304d",
    "signature": "0x4fa00beeacbe9727f2e25f357f3fc6e4f7e7f02abba22e013e4bce94cf6488b426e8aa6c2b004b668c50b50428ac07cc23d6f124b6cfd2756ce8e01bf46353af1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}