{
  "manageEntity": {
    "action": "Update",
    "entityId": "270354551",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x469d675db6371ce68ddead1869ad70ab48333cc14023c9819eb7ae1e308ee363",
    "signature": "0xbeb866f34909fbe748a7b00dad8cc7871fc8eac2878ae05c58f2c759d91e419d32af09915c1868d1f0bc83aa4e84fd73396c8164d938ac96f09fb5ca67bf84ab1c",
    "signer": "0xEF1Bb589929B6bd530784003c4a665D59aFF93ba",
    "userId": "270354551"
  }
}