{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143958",
    "entityType": "User",
    "nonce": "0x875e87b5cc426241e47a983173f6d943f6a453977063e30c0e59f74133767df5",
    "signature": "0xa26f56b9b4fc2d6cdda264b050517b084554761d2dbc4f3136981498ca4115ac06ca640eb972e7fe684fdcc73f2724be7446f359def3a5215e65d0aaf54c96b41c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}