{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335878078",
    "entityType": "User",
    "nonce": "0x5bca916e7a604afc2213ed5c00e8e48e59ae416c85d448b0d702ebb64d9c63d6",
    "signature": "0x6f543d816a519f64d8aff09eb94d1f69806c95c9497445ef3d999bf2996723195fa63e63f303f66d7bd6dd124d9641b3a605c5dcd301f657f161b2e516d8f51e1c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}