{
  "manageEntity": {
    "action": "Update",
    "entityId": "734121574",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7317b85f3f79c4b1e0e3bbc9063a27ddfe24e0373c6b1e275b1fbf3877591321",
    "signature": "0xd9de9646031191c6c50499528eb1b5e5ed0af6923dbae8f48ce0995c553ad6527f48ac978f7a3c6a2f61e854eb705a3a77e2d66f6460fd061dc3ae140b72f2ca1c",
    "signer": "0x9Deb5c221A99A81f8d7dCAC0BbB93af4F5741419",
    "userId": "734121574"
  }
}