{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x646afbbfea0f4c98ba7881400f86941e1c3b9aa4d034d2cf34b776acc48de62b",
    "signature": "0xc0af1a904002f873f66b7fe14da0e2d0d27d4ff87c6baa3a19daa25dbd06b6a40090d8b19fe8c3ba0c9fcc6d961fe4d636575190241c136d707b64d0ab906b351c",
    "signer": "0xd70D8533450c73a29c04C49539Ef7a098505085d",
    "userId": "287477042"
  }
}