{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "441572939",
    "entityType": "User",
    "nonce": "0xbc88ea6cdcf10d7ff6154a2d9adc4745d21456f7fb178a97f2287952ea077a03",
    "signature": "0xaa1cab25a9f3225b7fdb1268a5fa83a5e8942070e4618ab2c6f232e6f972d67610106a9d853f822ef3f7b5fad2b5f37f6ee09829c8a02dc4ccb2a84c113d4eaa1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}