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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '6ed1e01777afc2f1b2f0967c2d5a814226d9c648325bffb16b34bcb930f24246' 
  AND token = 'cTOJzRhOt5mkupEibRxv1i6ULDKPqit96y9dRCGgu4k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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