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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '0ba472e49a1eb31f1b752b265dab03388df78068060db8caef1ff8e334c13e3f' 
  AND token = 'AWmYljtab7qLMuE1FBgV3/u1wrwkcDKruf5hb9dbsYE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}