Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '653449d7ed0b3f6dc9e1d1c761349406b3c5064e6d145d473d2df35e1500e75e' 
  AND token = 'wck0gH8SH5c47Cl+RsthKWNums+TvcSQAfYFF3OBsmM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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