{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301336",
    "entityType": "User",
    "nonce": "0x32178b715640becfbdd6a28049e40053b8e1c4dd0d836f0e906779be8a9baffd",
    "signature": "0x76279a42e7c54662ab082d3d90a3d80593ad78bb455d3cceeb1123e79ebeaaf74c98720e95623d749b874f73ca8c9617c9fbf09273ec00e20ceef88eadc6c27f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}