{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50809191e4cce18a4d0b4a3e964547e3e7d785bf7d4aba373b99f6f3e636ac5a",
    "signature": "0x160645e290998729925d2a7250527f7450f5504343ff1078fe738249ebb6ba0b3d2c93a0707ba3d5ada2f6d5ee649a4946d3f311999a54a92bef0f515885d3091b",
    "signer": "0x1B25b01159BD897158231C11bc7b64c61450E5F5",
    "userId": "752777935"
  }
}