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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f548179ae085797a980c52f199aca127fb2889570a5e633e7f23db3b23368cce' 
  AND token = 'vG/SNIXZVCyC11jJ2tE1OCYP6TBH5j4IVmuaegvIirc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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