{
  "manageEntity": {
    "action": "Update",
    "entityId": "958115750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd03850a0aa2696aa42289d2d92d49a22a54be558b892792ff54e1527e38a5279",
    "signature": "0xb8d45131b4618cbe609b62a97e53f111497a189150d79ea147ee30588498fd9e42e950fe2ec06e9a1db41e8a8721749e3a72fd54d0171c4a0732187f248896ec1c",
    "signer": "0xAA3338Aa42CA68c43d9e5D9F1b21D06137660807",
    "userId": "958115750"
  }
}