{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18168",
    "entityType": "User",
    "nonce": "0xbf8e4453d028e7cb87e507e93af5e86c1611d8e20a2d883c5bfd7ba53b812865",
    "signature": "0xef6248aa04d8abb453b7a40b85ffc1076fde3ee271ce5b26af41ccac600118bf2ac7dc13739f7e7fac5d7dedf08584497d13a8b3151c581b644667f7cd13187b1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}