{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9681c0461b24ccbeb3459d8ab64cf47a2e8de8bf07825be96550d4af3b052f2",
    "signature": "0xc76101574e4cb6ea5a99d6c5b9960f4f91fde341eceb982aaa374b5a5e90e93449cd66a982bbf055b1cbdb0cf79ffab31c62ed914d2ab10393659ee7a343d2461c",
    "signer": "0xCCFCbacB122ad5a813E75b44623a8EF1876D9F1b",
    "userId": "383000133"
  }
}