{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775074",
    "entityType": "User",
    "nonce": "0x111226f123d32bee47e2d10af879c99088c78cada21bd9a097fcf047bee42632",
    "signature": "0xc8c4ad4f0eb2b266e985c333ba71b61bb199f8d86973695562fa3dbc3ce365d620ffbbe8f4934c038bb791a7d1d4fef294c014b9273957cd85106f1d76ca810c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}