{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275305",
    "entityType": "User",
    "nonce": "0x6df298e08a87a768a9f173696ddca3f0398cd8dc182aabbe160011a4e514e1cd",
    "signature": "0x975286732c302bd3fd6f20ceaf18375c702c230e1ec8328a260f60503138fdda74f9d00bc988fd85bd38e9094c4049acefe847b6f0a9ccb2f8700dbc0c7eebde1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}