{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0xab3ae0f6eb7115479889b2d96c63876f19301c366d87825672555c3d2ae94c5f",
    "signature": "0x86a19f9a874c53c19358966382c1c9a798ee8b4e14b87209ba89aa9e3d36364123bc932bb6c7db58d87d7194e41e369dac29af4a015f6e649422e2726c55e0841c",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}