{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1471974",
    "entityType": "User",
    "nonce": "0x1138e392a82da00417d93fa162f543320fb8c891ebae4fa12b8658e88d5488af",
    "signature": "0xdbd53d86c19b27a97d8198d8b48eed1828f0ecb44b002ee1c4ec3448f7a6e6971b2a0ce61be4303a34f9980371f6d9dd9c265088bea7368198b4caf8b442bb261c",
    "signer": "0xE567D491AE5c08cc86356663b936dEE6ae821719",
    "userId": "404802700"
  }
}