{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xf9a252dd96afef56357bd8707cb8c558a780f2717592605aecd12a1d003d39bf",
    "signature": "0x36a7197adb6ae0f53657c4cadef282187c1d6974d64444be39306836905651f809f7e8249a1f267f02a149019d06d0f120b3b1489e41ab0d46bb2ce61bfdfc7c1c",
    "signer": "0x720537125Aa4b451266209E0d508D7576a4bAF94",
    "userId": "942771296"
  }
}