{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146791",
    "entityType": "User",
    "nonce": "0xa81f7bf1702da2b7a0773b81ffcf0cfa7935b55717d332cbc1f2f562fc40ce08",
    "signature": "0x0af49e136c724a9fbebcc95646f491dc02dd47891125e83547988d7de5f74f38663460f9d5f683afbe2fffed62f9bd488699a42a203678052387170f0b81ad8b1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}