Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72c3c759e17240b0984ecae39339b68a1e51882a9a7546c7b6422c4fa26bb12e' 
  AND token = 'baLqM4n+ILJuVYu0V5Y8voBoRO1ia8QzArOvufHzFuI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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