{
  "manageEntity": {
    "action": "Update",
    "entityId": "15382165",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe515a479c2ea47bc0cbd8d4f1d06652e4a6da66892987084297c03cfb00e5c4d",
    "signature": "0x5faf92ce22c7e52b7da2e9fbac21d8ff5740935884994541dc7a9481c0a0822e5ccfc960f110ec8f20f6737f79d8144dc22fcae0caad9c54954e8aea71dc1cd81b",
    "signer": "0xc116c07e5c4eaAaB33084a7B895f29d2105D645b",
    "userId": "15382165"
  }
}