Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72a46eec619ec8e48c195977cc4e49705d34157a450f0a3894e6cb6641d50b73' 
  AND token = 'IgLYmTDqV0ei5chY/RYAuvaexYcC9IINWmBwp7GXEq0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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