{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xd6d6d3021e0c2b98f0731434f391957bdf716bda724f906e0bb47bd069387956",
    "signature": "0x3e10c854567c977939146a138e17d064070d009ce1c05b5b25947624c2ffd12e7191dd89217f3fd3a4f13b326ed945eab563754b521979f8ebbf0ea39a4491561c",
    "signer": "0xf76Be3e57D30ebb176cA7D31f49157c7f56E6b0D",
    "userId": "204302128"
  }
}