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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'ff78711cd5f2844caaf0279010b5282ca6d5280803d2ade35c5553fe5c20af2a' 
  AND token = 'Sed4Ny5W5AuMcFJdZkRoeZf9ZiQR/zr2or1E/qwm0/c=' 
  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"
    }
  }
}