{
  "manageEntity": {
    "action": "Update",
    "entityId": "876735576",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x42275ca9d1215dfca303ff7a6f465577f28714376ca4c5091ef6a18a277d935f",
    "signature": "0xa26d8f92982886129dcd6cc2f17389d53799bbe4140a13d80aa5b9a5146b5c875187c5acfc04da4b044a20678720bf0f655ca188330216c8fb5b6fd6dd76c0961b",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}