{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124658",
    "entityType": "User",
    "nonce": "0xc9e41a7aa75712aaa80242b300125c3e14143469d46b681404e7255f7eb93cd3",
    "signature": "0x5b52ee8744904b76728c40a0585c09be040747cc47a288ecdc92af3070a7449861270bcd721520ce45a708ca09cf18bb2e5198ff221431feab91a7af67593ae21c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}