{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35404",
    "entityType": "User",
    "nonce": "0x1366c758c3586512f6941b17fa4078df1d83dc50735a091aee47242d255e3a4d",
    "signature": "0xa760de2cf5149efabcf9c464e9708c94966cdda983bc33dbf658db569a30d33952fb8b743db021e8466bb5a21419f388bbce129b0df89991d95b2466a10acef91b",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}