Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb873db7a3b53c43323a1660d9d39e55478d816722242739493ff0b4d3e10738' 
  AND token = 'EwaNxlpBxoPCaRSH8I/2n6AVJnHWjFskN0H6tmhhKk8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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