{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x31e52fc9e2c67a697dd2f9c3dd3fcac68f3dc25c2c631ee234a474e3536404c5",
    "signature": "0x2ff1e3116033c45f50d2bea8a34e93a7666ac21fe66fa5e65dc6138f6259746d262de16fd40ba9ce79c9e4b3e40cb54f5ac69aaf8e9f7bdd13c26f1954c89dea1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}