{
  "manageEntity": {
    "action": "Update",
    "entityId": "834864839",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7813ffeff99a69700eefdf04a54d2a3a22d134c7c2a275c0d7f899ba8dbae50",
    "signature": "0xeced22b71de0391f2bb251ad228e2c7e07476c88b83dd056339ad6890cde487375ed8b3c6db4ca7b7f99905e456b26fad73091cce20df6bc2f5a8d62416d39891b",
    "signer": "0x0F02a0d7378bC44c29a7679abAcE4c7425508d4b",
    "userId": "834864839"
  }
}