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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'f8ca86e0c1cc2017b40d890f4993df6578ca8bcd0c7a1c5588148a169917a7a5' 
  AND token = 'Qx61uDjiIDnFxy/SRV/yBDFR0fRG6UM10VewlqLnvBU=' 
  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"
    }
  }
}