Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f18918ca107b6c05d53b12774ad5bfa32f4270eafe3070033525d61c13e799c9' 
  AND token = 'EHEX+mZNDVNM56j9jPOEqGWOJeGCHxpwe3DfxdfUaAQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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