{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123805",
    "entityType": "User",
    "nonce": "0x53a24a025e37a6434644fef83380d47e359e80a3f5399276f7d285d4dec49dd4",
    "signature": "0xe3573a6753b290e4b9dbbfeaaed9f8c0e7ba57355a4cc6070e6170ef9de6ea44352523795b69c0305dc329da83ee5f87ea7d6aa9582984a1dfade2d0179a78891c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}