{
  "manageEntity": {
    "action": "Update",
    "entityId": "579726392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraz3ncuo45ahptsunt5nnlrbesmzf73xna6byzxugslegnk3cx6u6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":147488032},{\"type\":\"playlist\",\"playlist_id\":305796788},{\"type\":\"playlist\",\"playlist_id\":974101746},{\"type\":\"playlist\",\"playlist_id\":1101270933},{\"type\":\"playlist\",\"playlist_id\":477711630}]}}}",
    "nonce": "0xf83e7692e3bb9fb9e8d96679aa134475db4ce66814c1eeb8612fbc47766bd544",
    "signature": "0x07795de21cf35eb1b44fb8393e174a0c2c998dfdd262203093a8c97032967a364ef13a524b57f983c68db923e040bbcfff5f97d6069a654ec5a7919493fbdaa71b",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}