{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x4cd87d7e9feb39259e492ffbca530937422f347c00bf82ccb90d6e2b37a75df4",
    "signature": "0xadf51b335594d617f034ff8601b4e11fae2cecaabab3d8258f35884b30a7578546d6af507f132004794baafd583c8b757de49ca360b7d0e792d49b2a864aca7c1b",
    "signer": "0x934E45BE36e38037811AEb6F8eD448164c45408B",
    "userId": "582278090"
  }
}