{
  "manageEntity": {
    "action": "Update",
    "entityId": "253366852",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe89c17a8783e037a688dbfe69885cdc5050a5eeb247e3cfd70dd8c1028999a83",
    "signature": "0xe8fb6a596bdeb233cbb8b0bf9b11b3a64839e1dafb6aeb7ef1042f41b88006f360fde2cca4f5f354040e160823a9eeea207c5daf064f8703fb8d28c245bd1eac1b",
    "signer": "0x2c4D6CED340f5543Af16dc7453fb3d3F0162cB40",
    "userId": "253366852"
  }
}