{
  "manageEntity": {
    "action": "Update",
    "entityId": "888493263",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf11ad0cd2c982422ce144477b37e705f03704afdb1d8ee003e3f8bc8066ff095",
    "signature": "0xcbc53937dba248a853e183b4860bf52f132667ce3d2eac2518e7e0d1f96bf7ec13e14da4c255a6b754b815282c9abaec4523a5882c2bf452144e150b1c22cf711b",
    "signer": "0xD03b09febCCc5D126F8F29305ac144971D8101b1",
    "userId": "888493263"
  }
}