{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x12f20f29d81617c57e9b7da1a9e5245be45b3f4c92645dfaaee2dbed063cf538",
    "signature": "0x89494f2485b1bacb9590460ee0e92f9d534d7185a9d96bbf7dd9931b0620708e1363cc1b7c289f7614d311ef27f0ff5e7019070e35f005569c7751f0f7c686a51b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}