{
  "manageEntity": {
    "action": "Update",
    "entityId": "846847743",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2378e22424e598890f6d44792e419737e35276ddfbecf33f257e7ef1b116f217",
    "signature": "0xbb8aaabd8bc85815fb0bd0789acbea53b803e88aaa9c5091ee94879aad07fd7054472476acb65b17246691ad82fe420f5be7f52f9c999287833604ec985856321c",
    "signer": "0xd2d78f9b62b3956830b58248CcD3C59911Dd6E58",
    "userId": "846847743"
  }
}