{
  "manageEntity": {
    "action": "Update",
    "entityId": "129846494",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3d1ad223cafffc78d7dd53d17ced17bbf15de52c3647bf9bc2f0f3b795794f10",
    "signature": "0x51200e82f51769a67f2f25955b0185c71fd60e1a5053ad92f352d7102651f5d653b3fc093cf2ccd174752bd1a62d473341b520d6cfbb4220997062a73ccf375d1b",
    "signer": "0xb69C788c7cbc7dD9aBe9E91477F694152BFa6a5c",
    "userId": "129846494"
  }
}