Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e60e8473343a583a1bbf0b577d979b93ab7850abe4d3bc919e02e51158a93dfd' 
  AND token = 'XWa1uFkWsa2CdEHpL8hIHArJYGPv5E56E16BiMOoc3I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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