{
  "manageEntity": {
    "action": "Update",
    "entityId": "1415762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraokiqprpiphmbeu6rdsajj6s72ycwoxkdwtcmkqjv6hdm6e44x7cq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1087030952},{\"type\":\"playlist\",\"playlist_id\":198813583}]}}}",
    "nonce": "0x3a7807cef91ef7de1eb060de61f46d1fa6a6f9200b83ac09fc3eb486a4ffa262",
    "signature": "0x79a7c98b8ca5694e0f7422e8c6c0472381c1c9882d580bd0c85336debb713e1d7f7c0472fd8c008343408721e500059c362f307d80b3f67242c27905a61457571b",
    "signer": "0x803cAa47D9F525D1180159ddCAC9575061b200B3",
    "userId": "1415762"
  }
}