{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "929283620",
    "entityType": "User",
    "nonce": "0xc7ed360901c0d1253554ac1120a8a571cbf69a4b48be43bc37f81d4dff657580",
    "signature": "0x3923a5979c04d4a2bc7dbfe2be27b3a75cd7862918979beaf018b9f7a7d5ebc461bfc2c7576d0f2b516d40bf5aee8e83f900181ee74cf6a3b8ec13732c3dd0571b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}