{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x306a92f0ea5b1d17a2c1018bc3dbbe135f04587e1bdb642a7b316e88ab47e251",
    "signature": "0xfb746b8f2d294281b1ebeda4255ef1730c013f817041c431be5a60a233d4e923029f6460391274d6eb0b0e852488d6f8ad563bdb7a2887577444621582a43e971c",
    "signer": "0x78C0d0ce5517198B2992bBfe288BC9D6B6696526",
    "userId": "828117089"
  }
}