{
  "manageEntity": {
    "action": "Update",
    "entityId": "508931608",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6b4bff87793d2da0bfe56eb7d0f4e59c5c637059de3a7f0e092275baf8a578b7",
    "signature": "0xe8006a6506f9a84671539735c8727e607c47d81e694a4586fbb852252d1ceb5733afca5911880aa5716b55931cee014fb824e1a33fd1372428530f0bd6ccf7941b",
    "signer": "0x69163Aed5B32EC7f6C8a1e4aDEd7fD7E298F9521",
    "userId": "508931608"
  }
}