{
  "manageEntity": {
    "action": "Update",
    "entityId": "246996748",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera64mykltyoba2vdq6ttooikstbwb2huedtkcoczyc6aimevdxvh6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":875696631},{\"type\":\"playlist\",\"playlist_id\":1478367643}]}}}",
    "nonce": "0xfe0ff42744332055ddcfb12216b3fde521e128a3c934fb76ee9b4e2cb2ec7a0a",
    "signature": "0xa889de057648953b851a0525c8bda26a8df23a6ea5c1a4d652607d59a850de5468c6f678e47bb04155308d37b37c31ba1006f032b318bf0fb636bd4a5cdd68291c",
    "signer": "0x684a9194BeCE3b330c8b863D4C866bF0Cd7dCc6f",
    "userId": "246996748"
  }
}