{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318437",
    "entityType": "User",
    "nonce": "0x504c9f094255aa5b86dec2d3f89e675e6ef6f2a3fa7f030e8ef3fee9c75dc821",
    "signature": "0x0385daf72596de39d1825d11d446bec9d19e70d0950f1f3ba9879f013d8eabed4bca548b9b99541850466477526941c07a299dc1cfa1e538db5b671c51a1ad761c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}