{
  "manageEntity": {
    "action": "Update",
    "entityId": "971129804",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera76ra4p33aij52gu6fw3wnihhjma4iuer2j524fqevfhdvpjgld2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":940553898}]}}}",
    "nonce": "0x8ba47bf23c9344df87aed1723d549686fc9fdf2c98a7826ea67ad54ba44a731a",
    "signature": "0x5272483986edb8fb0703ff654fbd757ccf44e9851f26e201138375f7d5f0d1f6495011037ae528238043505ebcc55163c2e412a91e9b77a01f80228e4f02cf611b",
    "signer": "0x3e48DC5763519fbdE0A26db7C59929E8Bb6B8Fe2",
    "userId": "971129804"
  }
}