{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x075e29bf493a5cf8526a53f1b196d13e3381fbcb8166621e1382155e7899dd86",
    "signature": "0xff13b2cea4d0fb9ef04dfb58c6c58d636438a17a371b4a442fe6ed76d573afe65dfe30031778df8686f5c60ee67419bae312c02708eb27719076f4d8dd07af7c1c",
    "signer": "0xFdb7279D6dE5a1b217493Fae5a3d919aACE56C71",
    "userId": "74175991"
  }
}