{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "947140631",
    "entityType": "User",
    "nonce": "0x3455e4aac2dfc3a518597ca90f64a982b5a035a5681ed67b9366f2c456f93527",
    "signature": "0x82b479fed653f9045c41302c0afe12ef8ae86d5c0b7f85aa14e4dbcfaf788f9a7bb37f2fb22e0eddd554e8a376334e88d4211a105f478dd71def55a24275b2ca1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}