{
  "manageEntity": {
    "action": "Update",
    "entityId": "946311729",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa7219e8ae50e6d9f33f2107418bc920aca63b0e5048d00fc82f565f06d56b867",
    "signature": "0xda2f1c5b93bdfa80847b974ee0a11f4c7c487df1e66ed9c0c4331079eb82726f4dd9f944109976e415b2b4bfc48d66ef03bf8f1e837160a81336b2f6996dbada1b",
    "signer": "0xC3A02f8a2eaD06AF89d87419410df10650738771",
    "userId": "946311729"
  }
}