{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125413",
    "entityType": "User",
    "nonce": "0xf4cfbd51899f26d452a161f51b0769661dde258c90654eb07f3616136b49e150",
    "signature": "0xa6a04025511481c9645846a54e4be14a0b3734a01f6e47498efadb95c170f1d164943004c7beb63aa877c895088e1e2d705bf8df7d7bd6ab90eea646e53b40b91c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}