{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329747",
    "entityType": "User",
    "nonce": "0x43bc671a4245fda7b3cf56eb649d551a18b87bd677311276f31cb8791388b7a5",
    "signature": "0xbfbb135427589939360ba4dab1b95c5b08cac69e9b85fe073c656005a00c557e0ad7220df313efe47b945ab9f42517125f82fb1cad88d2c5f7948d059209d82d1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}