{
  "manageEntity": {
    "action": "Update",
    "entityId": "962203192",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7edeb5d580e7df484022b66d91861d02c1c3d980d1afd1b74d6d61ec196a5b2a",
    "signature": "0xf09d524d08d65b0d88a691971ccf4d47d378e75bdbc3ecf6675bc197dba9080f03859e4910a1f33565777bad7bad073127708ca7d570e336564ce6785b37f1e51c",
    "signer": "0xC904b74a04E95F05A4CEC153C71EF75FdFFcD5CF",
    "userId": "962203192"
  }
}