{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "399633079",
    "entityType": "User",
    "nonce": "0xeec44ec3e8c2a32c2b7803e005070cff3be1fb21733cf2a92295b7896c0683bd",
    "signature": "0x8129e72ca26119cf2a446dc33044b6fd5e1062cf75502fae79c0495b2b3a39e15add81f4002d97fb542a5d48f3f7c5a38ae5ec1b26980f6f74fd6a26f8d2be6d1b",
    "signer": "0xc3E1A1F6d24cB1f128e405594711717CaaA95FB2",
    "userId": "494935131"
  }
}