{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaccdeb883dae12b612caeb6f8427c648f5fdc1df13c7a70ec5777c69678a2fa1",
    "signature": "0xa53fef32ab006a7a414f9b02e40d4ac049c495d014bf121ca24705f9f9ffa207063c28be216877986d62d742b4e5130ff328597cc701d90eb1864357b578b1a11b",
    "signer": "0x11d5b0CE888Ba4Cb952eA4B5e917dBF05C349204",
    "userId": "307665340"
  }
}