{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc2687de61c6a55e9414985cd69e8572e1b1fd9d2d9021b54d11215175f05b22a",
    "signature": "0xfa9025405f2d8e0a17e34e525c4fa3026d51071199e87061f8ac89731751dd85594842a885603127037c68173a4b3e7e923a5ebfef212d331c7678f1f87b88281c",
    "signer": "0x00496EecF8F308C7b04E71Bc8af71cbA6aDfD6D5",
    "userId": "76880795"
  }
}