{
  "manageEntity": {
    "action": "Update",
    "entityId": "383246485",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb19644e32f06f2278c0d98786210ffb2f7ba6f59f57918c15c802721fc8d52c5",
    "signature": "0x5348fe40edf0d2fc44955eb43ce593dbb5599e207727b0c443cb1ef6dc5ba129416d1592225d838aa1d15ba7a7a7aca7531c20b34a0537771533f6a07393ebb51c",
    "signer": "0x8fE23580516ef5596006BBc1541D2dCab23bCE56",
    "userId": "383246485"
  }
}