{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa4d82606a283e6eb6024b44ebac54288f6c864634712ed38b57f6745f100eec8",
    "signature": "0x49bf08569d83edc4bd65f86924e9ad17d6cfe2f15c4f3959c2d2132f6355b44546a853d35040c78fcdc217582e4f6d319e868a6431805ae17051c8e5b10faad41b",
    "signer": "0xa1cB707a6e6c37F991927639d7aD8433D9024F1c",
    "userId": "533069671"
  }
}