{
  "manageEntity": {
    "action": "Update",
    "entityId": "370099971",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc2a97d20ea6e3977c235b2055541c6a63c41b63ccfadad24354c6a22ac503d02",
    "signature": "0xae84b31f5a0e59233c56d21e04f0ffedf78eb82796f163d7cf47a8e2ee7882ac562d5ccd4b42f3309a84b83e036731da89412ba28d1b91dbd980b6618b780aa31c",
    "signer": "0x8284Df0C9023618C9EAD23793e686ed7c7d8BE4d",
    "userId": "370099971"
  }
}