{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40971",
    "entityType": "User",
    "nonce": "0xca60655872997b6a24bacb16ace2cd09452ef1b8df5b297092f88793d49c6f9b",
    "signature": "0xa937ee3f7c2fb0b3c6396ffd07ef030e797b69cb1d136f66e2210c003736d4317cc3c599656842ef9d678eabadf07450ca3e66cf853471f5fedca83ae2a2ac101b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}