Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bbcc2626760801574ffa2cb394b9c5f0e8f707f6ca8f272eb880bef381c715d9' 
  AND token = 'GgLSpEgIA4vnHzxB0HKya0ZnFE8aBIpvQWhDCINDEps=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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