Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eba5f803be494256ab1a6998283ae93b759c8f0cecd979896f82c4a6e2218ae1' 
  AND token = 'e23K8gB96/nP10LcW66Qxsx+vaRRJrjyMAJlF9/vRo8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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