{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x00b34fe064b6e61f161121afe070c7d7a724b53cc89c3712e2d7837b67615c2a",
    "signature": "0xa57d9482bce82947c606c184bec4d37d31130da811ebc568efa394721f344371315a2bf8e775068b8437e9e58e0278af9e3e4543f7d1bea64121e328f79837251c",
    "signer": "0x91a89A33FC0f28AeeC998DE25E68D183Fe5AFe2f",
    "userId": "361098729"
  }
}