{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62649",
    "entityType": "User",
    "nonce": "0x64da4b189197ba84e443f617ff7e937016c5f5b5caba2fed94f249dd22ca9aa7",
    "signature": "0x09e599eb5f28d0815ba59976e969282f960cea1cc08ab2e81dff98d602499463429aff27e4d724b96ecb12a82c755cf4fb8b2016af83b9f59cccfb1c8eae79291c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}