{
  "manageEntity": {
    "action": "Update",
    "entityId": "238856977",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x57109ebd6351928676cb950ff2f65c0c23e1c55bbb048f9f1c40ded351eaea49",
    "signature": "0x86256b420cbe7f91b565a88482ed233d3964df6959c2f6d55920827337ee23940a6a6cd61a0780c00b9836128e1a906194927c8b999bd3882c04384f0f2f60e71c",
    "signer": "0xdE805e6e59B46801b088573b333f792006E70Ec4",
    "userId": "238856977"
  }
}