{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0x03117d6a608af05d02151ea10be04ec076d352ef012f0e7486c486871e1b446d",
    "signature": "0x199a874a3dff27fdc05aeefc418df18c98e852f6a0ff617fc004cc224a54a757045eef6166d26f24ebd15092aae2dfd2ef76a8a5946204aa410739ee1fa7e91e1b",
    "signer": "0x91A0243d0c4b44cB682cB60883cB72C26a8Eda55",
    "userId": "298293683"
  }
}