{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63972",
    "entityType": "User",
    "nonce": "0x943475a07471ab9432b1be647695665e782738b36a87a161047c697543a7bcc1",
    "signature": "0x7d97c948eba05e1dd65b432c20e8b76fa882a238402fd4f86383a184901233552c8baaf581e9c48fa3fe7aebb6c178fe4db583af269581e11c6e0be611acfa321b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}