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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2526bd857408b9ff355f34e7b9259a16744dd39f3f3f60c08cfdf92b25e47822' 
  AND token = 'GDIXbor/qhTfl43D72ky9GO9RDpByGiEReeUrHD0svI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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