{
  "manageEntity": {
    "action": "Update",
    "entityId": "751297159",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2a051eefa51e59cef1cf3ef86833ecc131551175c8b30204c0a09b3182620e17",
    "signature": "0x59dc9d364c6a88bdc44e6894ca619031cc3f96bdb3f6a952b532c9ecc2fe18b97d9e12d1b8858ae33e0d99473e6cf258bf660fa3955c35a4467590fb37118deb1b",
    "signer": "0xEeeC97Ca106a9FcdBf9c1B313275391bD80c7020",
    "userId": "751297159"
  }
}