{
  "manageEntity": {
    "action": "Update",
    "entityId": "918602404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4db87c1f4dd6513d2b0e9ee410e7cddb3fd2502bfa428cd98f46a24593f1aa51",
    "signature": "0x4186b990c295aa6b0ae9dc4dbf132705e6d5a7d45e7f5461fe26b1e85a376be15e4504f433e7ca369c7c5a4f5003901ea87036f9c1cd2de5e567860597cc4cb61b",
    "signer": "0x9e6Bc923c3B1A420BDAF7b6dd8E4a6Bc51f0DfFC",
    "userId": "918602404"
  }
}