{
  "manageEntity": {
    "action": "Update",
    "entityId": "464662154",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x09595f4e9042197f5457b6f120c0ff766262f4d575b8b1d11add5c046cc16d4b",
    "signature": "0xbc126cb1dc9b8410a15f3833c4ce134c88e26d162eecb011c7fabbc0411e90b071cfbfe186ea7392dbd673d442b7686cea7adbda1f6c9fbfc57109bb333c24db1b",
    "signer": "0x8BCD75b80A99F1c331B52ccc718eDc0147543624",
    "userId": "464662154"
  }
}