{
  "manageEntity": {
    "action": "Update",
    "entityId": "108662596",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x391bf531623778379c196fabf9c97b6af34866e1e6277a2d996c438ce6103280",
    "signature": "0x7eb5bb7c3b232bf3a3ef89818b00f4077f5f865121eb96428ecf36e81e0334cf321e4031ef0e2b87381fce4b02eb517d31fc85e1cc3b21c1c3d31daba8cc59471b",
    "signer": "0xC09D15d8aF1166773888838DdB3399C7Ac0808e2",
    "userId": "108662596"
  }
}