{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65278",
    "entityType": "User",
    "nonce": "0xeea6d437fb6d34026056e3a4882d2b20f6be266b0db2111c175ac5ccdd0536d0",
    "signature": "0xffa771245a7d6b492a222fe688bf65a424afdfd27f4cc143c37dd85074e30c267eca3cfa553aba297165ba45467b86b062f23919ae52e475f6b2fc83ba28e3d41b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}