{
  "manageEntity": {
    "action": "Update",
    "entityId": "55585594",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x676e1e31574cdffa1d61a0ad026438c36f17c67d1e3f56a7cdca0c23ccd14f3c",
    "signature": "0xd46bb131645ec0ed7ccf55d534f59573e9d762275e7905c7850ff081941c5d33281092a3f488d612b0b3fbbe0e025042bffd69e30cb54764d2e4e1a727f3e6fe1b",
    "signer": "0x45c17D77862c158Fb597150A8F805a0872511AF4",
    "userId": "55585594"
  }
}