{
  "manageEntity": {
    "action": "Update",
    "entityId": "826172471",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x702d6e45b64f95d448190d1b5fa634ea43d287dd96cd240203425e63b8217df2",
    "signature": "0x0dfb762c3b077f69d548b386677030f6627739ba4611e6b8605a92e76de6442564e2f967b22a0e82a209bd2e5b373b0af698a004786134e7f7992870a6997b071c",
    "signer": "0xDe538Ca1BED3a78494574e2d57a4aD691Fe9485B",
    "userId": "826172471"
  }
}