{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "276441",
    "entityType": "User",
    "nonce": "0xe7ae3ebf0380edf98c0837db6ac34b336dfc8d1c44fe225f0ef11b2703e24df2",
    "signature": "0x611db37d7dcd617aef254ec01ddeb962cfe85f01fd93272a017551a2a5e4c50a16391e340366a4f7b950baa54ba29bacf2ad57585e1a7034782b8ca103180bbc1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}