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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '4524c7501c3af595abbc6e3a82a0d0c64a7e02573cb9c859d3ad2c8e4f31b425' 
  AND token = 'Gsf5XHac7ANYgHQNCAodjDaNvW9tpVELDeXNwDiccn0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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