{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306850",
    "entityType": "User",
    "nonce": "0xdbafb43d9c776ee6517af7fb975dc8cfde53de48fac7b116dfdc2a59c0b74bec",
    "signature": "0xc6e06085dc40d4fd41c0af3c0194f318865f4d7872bfae9b166721313e5d20ad6c0991ea6a977300c7a6fa0787d254a0aaa451a20dd4ac5e7106dd9f99550a591b",
    "signer": "0x9731c27a228046e65489b08a1C3f1A64f7093B55",
    "userId": "848409996"
  }
}