{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2604306ae92e195b7c3fa9c148e9eb0df2f21c7ef586629e3eb5edaee2840ff",
    "signature": "0x2b863732792773e0ea92a57eb30c50afc279f49232dbd0ecb190620f4bbf00af35ae03858f04611d71d9502bebba76738f121f76353d2d43e18181540372379a1c",
    "signer": "0xDcA990D6fdCA454B4d98656c1fc44a2174fe1A13",
    "userId": "441858988"
  }
}