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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'f2497365ff8c02009e8c8727fe580c9299c50b6f7512ea6595b97f3fa3c2ec01' 
  AND token = 'lRFTtGNHT0Z7Kv+JE4qIQC/qGnl6ELj+H4BcGH03esM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

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