{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61865",
    "entityType": "User",
    "nonce": "0xda5342a3705422e0f515bffd36ffe354a01c49bacc5b68c7c4764fe48456430c",
    "signature": "0xa8f6153357405d20c7d94994f63e7dbb84ed357cb9b16786cf49a8feb3993d3552cad418005b1c134d6ebb46084c90578056af4ef32bceac338b31a6933c534f1c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}