{
  "manageEntity": {
    "action": "Update",
    "entityId": "137133613",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7532ff4b38683d0337312a80c93f5db4f7264c6a88c34a61ff2c2a98c2df6d2f",
    "signature": "0x03c2d46f63a9011f8f002825c98c964b16d18890f997f7f31e6f9528af6b66565a23f0afd99b2f7aa29d257ab4e0044886b0af8465f9856e8e39138eebcbf0591c",
    "signer": "0x7fD36Bf59fCf5634329A1230914D646369Ab741B",
    "userId": "137133613"
  }
}