{
  "manageEntity": {
    "action": "Update",
    "entityId": "218887895",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9fd894ff74946fc4de5c5bc1f547726cc3665dcfc1c02bb3e876faa527ab1ef6",
    "signature": "0xa518501e146a2e909ef7f2a9b1d8be4e226371ee8fc425bf0015bf40742886673b01ed634ffc8dfb1a7c4b6c22ceec60d88672c2a5ae5664022c1a4ba2c1df281c",
    "signer": "0x89234D73dC288b2dE08BecD5C87648bBEfA3bbD6",
    "userId": "218887895"
  }
}