{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x0e02f70b913ffcd64c185a6e87742d4e9c4684ddbdb14629db68b11e2dd770f9",
    "signature": "0x55cc5de356c6ce8fc7ca7591594f78b7bc8f861c78042bfc831d3efa4a2546e13b02454bfc5c35b46a06d4cd429dfa68351c66c705582f29595a8d0588e442811c",
    "signer": "0xE8D6E5670A532CCA8099b7a222615B795D7E17CD",
    "userId": "617481694"
  }
}