{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923657010",
    "entityType": "User",
    "nonce": "0x71e9ff5fdac8fe03c0f6aada4f7a4b4886560282255cc82c62f3ed5b6025c497",
    "signature": "0xb5626b7b5652071734f8adb81be2a2176bbc5865f73b3e89596e0b75ba76f3132fccee8ca730b13415d89200c0ac7e68960bf69349824f8633ce72084dbe414e1b",
    "signer": "0xCf51c0CB439FF3aED8c04d4676b43572a8F8FB93",
    "userId": "763179319"
  }
}