{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x83cd3f41d26ddd0a0b07e40ccf2fc41052a55d6c1d9334209400345160947046",
    "signature": "0xde8765eade1face68ecb7c04e9b81cfab9e2df4d54adad0e9b155d264ae7a9553e41b60e02df5a604e391fc985926f97917ad6e3370e26bb00facde1ee80e4121c",
    "signer": "0xd73F9f774E8Cb98420d8FC9BF898407AeE7cb1Fb",
    "userId": "280382514"
  }
}