{
  "manageEntity": {
    "action": "Update",
    "entityId": "18002392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajessu4vs62igxkpbaukbdipig64m7qq4iv65j662rfyib4ygrj6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1608367466},{\"type\":\"playlist\",\"playlist_id\":478691610},{\"type\":\"playlist\",\"playlist_id\":18501855},{\"type\":\"playlist\",\"playlist_id\":1698632687}]}}}",
    "nonce": "0x56775d57f571aa77cd1f89fa4e8600e2187453f820ec8b6e906e7f4a66c94323",
    "signature": "0x26e0247b65857267c02c1ab28cdfbce81385aa1686997341707159c5685f79193a0299ec7d70a615534c824975d683098f8fd28d0d89ee016a6fbdeab8065be01b",
    "signer": "0x7Eec440C3674292A66f7e20C5E6efAeaE5956B9a",
    "userId": "18002392"
  }
}