{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xa0b007e49ddc4dafef2fdf76fb8891d25cc79d22bfb245c66d35cf24179f4c58",
    "signature": "0x7c3a51e879a992a6f88d55e27512963eef9e6d2a1ae56dc100588f31e5bb6df92bc3110ffe082325057045fd060a93c7f992aa99d4bf9f1a14e0d2e3988146771c",
    "signer": "0xE69EE1e71C27cDfa05141f1DCE82bF0231AD05f1",
    "userId": "933842159"
  }
}