{
  "manageEntity": {
    "action": "Update",
    "entityId": "731388658",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x20cf40d9496dc4c7c3027d0de62a91f1de1f6b753c4b1ec2b66d936e0983014d",
    "signature": "0xe4eeb1b6b56d4e89992e578c5184732dafbd9313d6b53f24f0176f6620b7dbcb6aabd55d0ec6a903fe573fb96aa8a10aa20fa15aaa2140f48eba5f174aa8f3fa1c",
    "signer": "0x0Bb059fe8308cB4D6cDD7d79E6b2AE72b3b9DD2c",
    "userId": "731388658"
  }
}