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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1104162f4ae0016a2cb9f3d35f804955a7ff95f4449e9f9fb3ccdd26aa0a9ae0' 
  AND token = 'oxtu8AwOhA4qWf2zLr8BqXqhkl0+tQyMPhVEMoDCChE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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