{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc6eb2608c679ca967d0e543cb4dc6c921a5823254cb4b6bd078ecc09e4847fe6",
    "signature": "0x8efa3530d88289423f707b75d8161635834399b37ed0a7de7879c0f4a6498de612dddc45e9f25c2eaa545de644e9ebe1edad09eb58a027fcc880d5b88ae03e1e1b",
    "signer": "0x9720ef26a1f7d80048cF4a3d8Ec98DFA87c1e334",
    "userId": "254520742"
  }
}