{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08d0e0e7727a71b592b0ced8b6c5df7d329e23906a6440d932f0cc22bb555361",
    "signature": "0x887e1d79acd39c2cfbd1e9915ae4fbe96a8a47b32856d0b5c1b92a352ecb097045ee649939ce5e19d6120a2e4a12e92cf476376509197e4a7c8d509d9eb315101c",
    "signer": "0xd058Df91627cEe362CD4c5Cd9669b6bC4DaD6D0D",
    "userId": "883005562"
  }
}