{
  "manageEntity": {
    "action": "Update",
    "entityId": "678460094",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3qmectdfahwnfd3p37z3rriwxgqrso4r5evuswauy3o2pdjlj4za\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1188373640}]}}}",
    "nonce": "0x7d613fa94c5dbc3708271bc854133d80a2fa4f7f79fa704dbf92286eb5433159",
    "signature": "0xc5a639005baf32d0ba9e406223180b1bbb18f84615d21b1a55346a4c74da309631454a2c724543bebce7ccd9e69340c0b5f918fb703fee1b3381986c52f287dd1b",
    "signer": "0x167147d06109395bea40bA759BE04aFaCf3C95be",
    "userId": "678460094"
  }
}