{
  "manageEntity": {
    "action": "Update",
    "entityId": "106285134",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x91d1cec41b2bcfe98e33b898b07f2a7a3dea5a4647e0e87d44f87896ed3ed378",
    "signature": "0x28730bc3ae424d8ae9de1166667631d5b5e84e197f5e846bb2d4f5a4fa86f6484e11cb17e772f293b85d7c5ac660537f718b6bcabe0740b25821068fb32afacc1c",
    "signer": "0xEcaFB903ca0Ad57786358d560482a5c5Ec371b56",
    "userId": "106285134"
  }
}