{
  "manageEntity": {
    "action": "Update",
    "entityId": "344552512",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x69fccdd0cd755a059b6eff94c3d1d141f14f4793af27bded2ea0231de2579a62",
    "signature": "0x01d8be10413bc975e4ce4f114136717089b524d8e12e7a1288cd9e2454a9422d0f1df2a9098aaeb4e8210e2ec5e3ed875b77d3395fe6907447235a56ddfdb1171c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}