{
  "manageEntity": {
    "action": "Update",
    "entityId": "335674615",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x79fd8c33571f3e59ed2a23fd988df98cee70d17fd2ca94730029f08b8298c238",
    "signature": "0x5d2fa9984c1fa824ac4a4fc427064a0edfab146d09d2550df23a44582658731f4e774d7ddb004b573d838ef70913eaf08eabd811aa773276949ef3066b8d27c11b",
    "signer": "0xEaeDdB5f18CEFf9Cce09145751aA90e015150947",
    "userId": "335674615"
  }
}