{
  "manageEntity": {
    "action": "Update",
    "entityId": "266782887",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x305b1fec57cc2868ce6fb8ed33963647bbaaf3ea4578bd5985ca01f1cbcaa187",
    "signature": "0xfc00d60f310bfc3ca62f8dec9242e3a5e0cfeb315d3d05be1a7219ee12931705448cc041a42a7e081a119383a1b4410b415dd2981662d94654cbb4e03eb33ad01b",
    "signer": "0x90A9206Df4cA22A1ad24bfB7F1b639Aaa812Ac58",
    "userId": "266782887"
  }
}