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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '43afd85ade80cf2207525f96fcf20185f9059bc8a5847fec6b9145588e025245' 
  AND token = 'JIapRVkr6sVG9QB0ysDbR894gp2ND6ryseQMPos6d3I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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