Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'daf491ec09fc1a4b332f0d78732c3f43b37bda9793946cc9fb70ecfd193a8c7d' 
  AND token = 'BDh4luue2Ir7bKa8E6tzG7apvs+o4f4QIV/oK4GubDg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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