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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0109100c1dd8d5eb9fa4a926e60a6b891325ff4868a01bb7f384bde8217722b5' 
  AND token = 'Ef203zictxu7QoFq0k2df0gHJg39rdpPArBNj9739vc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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