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SELECT 
  1 
FROM 
  tmall_lock_keys 
WHERE 
  key_id = '587c7eb071d882bfde64ee87b2e3d6ff53bbb20837a483f2604e2ef1265a46a5' 
  AND token = 'bXwX52sBYzHocaxz8IpR4I7v1+v9C6H3VC1rkrvAYw8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.01480

JSON explain

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