{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201249",
    "entityType": "User",
    "nonce": "0x5b9454c68de4a86f9e3f9ebdbbb61202077db5a02a122551da38427813523776",
    "signature": "0xa707b6a3f623ebcee86fb6bc6e30369d2c83b5e8fdc162e7e022cacfc112ed4e1f9c32fc8c36f3afe4969dda4b3c0fd98a9386745990d0470b7aac8f4d8a927d1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}