{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73732",
    "entityType": "User",
    "nonce": "0xf775dc4d80e260e5d69589deffb4885449883580847a34fef4948574398112d1",
    "signature": "0x5457a501eda3e1b894d769c8c3036644dbcfcc7c092ec336d7e9e9f699efc2364e84a573ab390f599425c7044d44245948379fa3a4c6ecb188f301707e12f7d31b",
    "signer": "0x00F16543ac18Dc11494D95D30C27f2130cDCA8a0",
    "userId": "196577716"
  }
}