{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "110566",
    "entityType": "User",
    "nonce": "0x1ec420fab50bb6f008b099c36eadd8a18435f4e83f5e79528d1035330821d48f",
    "signature": "0x71ba549532e68d3c11bf8b55e9f2bf55a862eae79b0741da4b2bef7b67b3f4fb502dbc5126f6bb6ab6cdeb14c940f3ca48813cbd83f24b304fae5a8cbb85c3f21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}