{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7559",
    "entityType": "User",
    "nonce": "0x7e56343ae6aeca2b3ddf1d5edb48fabf45e6042082b308a6c001e5febe32f0fb",
    "signature": "0x3089ca10712233929206864cedb64d427b1f74f925038964f0d8cf64a211a2835f2a25bb162b7211704d167bcb296a1daf5b186db057ebb18a942287d17d51191b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}