{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x60fc78c86b67659dbb52a30acccf560ef7f808907105d608f8e6f5aba598f98b",
    "signature": "0x80a0783fd8c964d2d3b6be3ffcd9876969f860faf887224d4511272e2485c2bd555a432f33b8f151b376e93fca66facb38699a57ece9082f03fdb6b506ef62bf1b",
    "signer": "0x37dC19a7FDE457551b1Ecd21C82de655e15Cad3B",
    "userId": "784638380"
  }
}