{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf36306bd032d730ece999cb6f47ad8ebbe6795a477060c2202eb7c606862064f",
    "signature": "0xf9ee710693281d11d5e5b01b70db41185be6253b59c99ac397f9a8bdedbf47b02cf3970f243703dfd3758bccee993ca0935f39839e85e8ba4e396bbbf8ebbc871b",
    "signer": "0x2A6A76c14278452A9758075478618181052a7c5D",
    "userId": "807162120"
  }
}