{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfb66a788b7f873e39446065789263261eb9daa8050faa50ea065a0217bf42d75",
    "signature": "0x07712da11d89d7efcfc8be7bdba6a2a9447b486588fdcb1dcecb2b691be379273de765115b5c8db3f7ae7d93b83c9b304b91019360089f3290459ff1ab1bd2941c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}