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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'eaf8cc9077594d7c732a1d17fefa961780926bd8b1e9bfad57085df23321a08c' 
  AND token = 'JkU8zLN5oUiLV14ePQ1Fbs0+Necs4kH2MUfrbbMib3Y=' 
  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"
    }
  }
}