{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x477733579fb74a9bea26c069d78f0621cfa93d6ca73b3899f799db18895789e6",
    "signature": "0xee2aff00a30d41106d2617660d5b28af43e412229eee21742cb538a07845ba99107f01bd6971daca6488cf69aa55d295c2aadd698e4bbdbc67000cb33c90191c1c",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}