Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fac2a1e0b85d38c73b77c6180be5e495298924979ae0fbce0351f2470112a54e' 
  AND token = 'Jiu14UfncJhCxtQCeKsT3uXveD3P8sb+qszqOxCAxqg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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