{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xd13f1b98af61835d1566c4e1cb4abbe2657441f2c2e79a9d349b454b259bbfff",
    "signature": "0x0d39df3735f4def769fb31578ba2b9dbaf4923c25b05f1945514618222d91e804bb619e91ba33daf813a1aea39dc51c3aacbeed879eb1512e5375ef698ea6c741c",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}