{
  "manageEntity": {
    "action": "Update",
    "entityId": "13930956",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe443d6b5c80cb5aa1a93cc3fe535a2e4b5720ab9f76b97eca9e9a19d57bdeb38",
    "signature": "0x5c93992110809c3ecb650c7021ea4d54270ecd6dfa34a2fee403f39e2bcdaafa49c078714c3debd9da7f5cb1dddfdbc1b713dc8744b3faa25f716a522f2b0cdb1c",
    "signer": "0x68Dfcf88F0Fcb3A379542CC267B2C1c6469d93e9",
    "userId": "13930956"
  }
}