{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xa2a56da5255a34d646661f416eec98e2ce8aab539edf5b62a9184d563428717b",
    "signature": "0xa3332250fc7b0fab9f97131074092743c7c169bbbd0b0e633c86fb755b99007b1581f0b2c2e589fbc4d1e7855e8ee427973749fd731bfc0c9aa6fe4606a5190d1c",
    "signer": "0xf3c59CcC58ba618C8833363781F4765e28cF1b22",
    "userId": "595153814"
  }
}