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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'aa3d2e60cd9acbaa985f8e826904f2042300b8b051438217af26e55b207c059c' 
  AND token = 'GLdBZfsc0yH3e49yufe/UK9K81TPUDd6ZM4SPB3sxwY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

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