{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394450",
    "entityType": "User",
    "nonce": "0x395331f04a35380238e6e323d5b2ad1eda949322a94c3393e849c31057d2b328",
    "signature": "0x2a28bd63c3216eeaa6b34c92f108e12aa2e3a4700bbed2a49399397845462838522b1f592eaa896dff13104090f71cbaf144158442d8a528107c937f1d1e9e141b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}