Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3ee7a6f279ca3a225ce7587aac835fb66961acbaa2aa20ac95acfc58bf7c1bfc' 
  AND token = '2T0/dB0zx7o4IpNE4KB38TikE03OlL9J4x4bVdXgi6k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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