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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1655b5f474f70c34700534a33dd0a7b6bc959ed8d55428e76ac5bb080c59ff93' 
  AND token = 'gqV8E5Rybzq5MAp6u01lQANtu9NuuYaDwRXkV6WzSbc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}