{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdca64f7945dc2b459f809eb42228bc40029881692d07941f88954824eb789477",
    "signature": "0x6960798008f77d20f311856e86cf60fc75e4d8b60f0dedd987d7919168d390f12ef52e6b5f12e96b7ffbb0056e0e8f29f917bbf076e85768204a417ff0454d5e1c",
    "signer": "0x8C7bee798c0AB93Df67Cd00879d67b02274644CF",
    "userId": "855403"
  }
}