{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1235718",
    "entityType": "User",
    "nonce": "0x5d57b19fbc782fb4e0d34d29579d4820c11deecb43183b86d8b60d7a2b239eee",
    "signature": "0x6fceaa951ba613c6556fbc1adccdfc70f3dc8d55fff3be576e7589498d73639d5240ccd369c9b420166a80f53b653edb3bf3c9d1439466f1640c1dfc5180e3621b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}