{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "949304110",
    "entityType": "User",
    "nonce": "0x95423b128c0c4176df041ebad4df756416224ecd214c5ac18ba7e8fcfe650363",
    "signature": "0x9f11c55c5ad2bdae09cc8ca1420c04fd3c7cf9bd23583540fe2d39ff359c8ba56a7a3994f9c13f5c4a48667e19b8c4ebff86064dbc25ee5ac9186b122602ee201c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}