{
  "manageEntity": {
    "action": "Update",
    "entityId": "407216161",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa73b7740c78b13c4cb40507f46e26e1625629457e71a4331b30f178254f3a112",
    "signature": "0x2b1315b981d7e3538b331e206c51687f14acf2393947c579fb5ad5fcb56cb77741de56d05d99b966a43c13d9af2832c385fb6aa844b0928b493a70ca7089b6081c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}