{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343259028",
    "entityType": "User",
    "nonce": "0xdd3511cebccd2ddfb62a02e2a59ad317218050c5b38146e814a7d1a27ae57708",
    "signature": "0x0f49aaa1a4af2304c92eb12a5e03d1b24a5ab29b6e5965fc061b0246d733d84f77315d9a4eca5658250309f78e1764d72f74bf81ad1e3ac0f617bf5783ccf8d61b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}