{
  "manageEntity": {
    "action": "Update",
    "entityId": "487939004",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9a6c5292dfccbdf06e41f363efa425d59a361ef6ca3d6ba242316490700030c0",
    "signature": "0x1ecddee299e98206a1f21f197877f0b80fd6b64d5fcda5281ff575f4765375921653f870b8078fe55ba7b25dfa3854c1bf0c04a95b8ca8fc4706b39bfb3b2cff1c",
    "signer": "0x3A25162935B033F53f1C057B6EacdFA4472E0400",
    "userId": "487939004"
  }
}