{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b097162dedadb2fefd62dcf6f674ac1ba9837356d5ecca040452dae1e1b35ee",
    "signature": "0xb16513816b8925a2a017681b9a609654405af518fc8c0dc7ad32f49fec583dd84affa87941ae250aceaab9a17e03f862309414958714b338503229a79b4f751b1b",
    "signer": "0xEDCDB601bD6D06D994739A6f926b9A966563178E",
    "userId": "724632273"
  }
}