{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "909906489",
    "entityType": "User",
    "nonce": "0x93c9c1ac19cd00259abbd1b080ef336062d7bd8204824a18e6c0852a5e44c3f0",
    "signature": "0xbf8e04f8c9fabd2dec43bf9b48a483282fd222ef7f82c5a1190a456c8cc5141927df5c7a83ba1969aeacbb1e62ca9edb2645d1c7e2e3d72ab2e552a9b448985e1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}