Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e22766079cb3987bd222d11bd09a44ca7997b1c9001666f422da2e65ebf0e51d' 
  AND token = 'v3JPGJaYYj6HnD8Qg+AXAwRFRbRRwuVr1DPD1O1MOuQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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