{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0x65680144e2bdc688038370b47b523f7d18fcf7d81a265ca2be65b948dd014ad8",
    "signature": "0xdf541fab608a7f0dc9fbfbee1739e1740758530c3a823ff1b8d49595f00894a3585006b80ee70ccb57e4c3ccb180082783d32a7ed442e54a0b49fc1ba1cd40b21c",
    "signer": "0x4d8e02E14cfa41261631bB13Ba09E3Ddc0D794C0",
    "userId": "208771414"
  }
}