{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0x2fc91288ec9eda65851028ae82c5f8d7fd334885e320079328f946f32904f744",
    "signature": "0x2906e2dbf14a24e96d1f0e19db5f8e5977f9d67c8e6e7c2838a82e08609c10d14ccc15fe1e608dbffbd1c58ea0a12dacad76b61532db08d95643a9709b64605b1c",
    "signer": "0xAD946b49DD63583180EF36B4e92703f717684d6b",
    "userId": "1112761"
  }
}