{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf3a5adb69f8c3245a446f2e443bdaee1fe749f2212cc559d3fda20d10ed73378",
    "signature": "0x91057c64688caceb827304859f815ae08b755286996d5771b7802fb513bc8a455c32ca0469e99f947050c06aca620d24852916a835f891fd33de229d7a79ef311b",
    "signer": "0x2f306C8e90c947e1707fD157CFeB4dd73b522D90",
    "userId": "775721065"
  }
}