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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4b90216215f43215248b690e1d20ab85e19d25ae0301b579353babc5901ac8e1' 
  AND token = 'GQziyYjQE2Ld1MPxSqP9tNfh9BGtuCHIIGRXccI4CGI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00104

JSON explain

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