{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xb809a9c19f657c7480ba737bcd84eb31e7b10d843a51933ad6dc27ab1dc49855",
    "signature": "0x762184b8f9d93bf4abe2a63211043818a2f17e332d50b16bfe806356e1221779511180a854df7100766835bdbb6d1b9a04dd14191909d5e16e33a773a9a294421b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}