{
  "manageEntity": {
    "action": "Update",
    "entityId": "505391791",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1e14075e47a96bfe83449aad9a432c810c69b2764a5638ca5917b443c58dfd08",
    "signature": "0xbb56b58764557727c69699ec9876a6b5b49bf765a2236443be114632e7c519613705156b192298dc94b50779ebb7d9630e8bbd8f9890fadb8fc6b65e986f43f51c",
    "signer": "0x58f38B9832d174687238aC84A5a4538D2F5Ccc71",
    "userId": "505391791"
  }
}