{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "561032968",
    "entityType": "User",
    "nonce": "0x32ee9670901e9c53fa4ab417da88a9a4f3a6e5af8089f8d49d09ca90084d65c3",
    "signature": "0x7c08aec86982bcd4677ca42026bf838ae1d2693bd2d3c9ec98cf7cdb5538368608f251459c76758e8590bd73693d0c8e0f30b051b04bbe040b034334916b334e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}