{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231124",
    "entityType": "User",
    "nonce": "0x95900509d72be369c1131bfaa77fb2706177128371ed08941e6c186a889b072d",
    "signature": "0xf92c3932e4fa0aea26e41f20ac99628d0987dfd7d89c0e88783c9d8c048005d67fcf0e588942e460cd36c0d04b3dd90d5e94eca180c0598b15871c9bf1ccf4071b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}