{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x3285ddb3ca651587732ffef784d197210068e559af82a139db10f32d797f9f43",
    "signature": "0xf4e3f604191c534296b96a562714f09615d8d403e8602bb570b86d4bbc3db4b359975108d16b11ae67cac5ec6556f1bdcbf847b467c19ceb199fb51c6be7c7e51b",
    "signer": "0x12EaF77464824447aA995e75Dd707B3e5246be9C",
    "userId": "409175645"
  }
}