{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xafbbd85a7cef9cc27646d88afa3046f00ba84307b68dca4a4db805d95e3266c4",
    "signature": "0xb3e7577c8b88945ddf029287cc719bd412319b08bbb7ad7df4492cb99509e2e94946a3f226644e865485b34a6166e17667952056f722fd246f22fd192ce32c691c",
    "signer": "0xbf6f38aD4be458F2B943d1d1D4Af66223769d6FC",
    "userId": "610405205"
  }
}