{
  "manageEntity": {
    "action": "Update",
    "entityId": "781859305",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x984d207abf3700ffc551f9790047f26e96303e930856df83d5e74091595af781",
    "signature": "0x1bdaed92fa15ad85968e7b8a1a0140cd2e09322bf773f88eafcfbb8cb1b82b4c4d3dbe02c2dc11f4794e3ecf42d3cfe0698ae17c459c7212a9cb774fc90f09301b",
    "signer": "0x5fF1FAa027241cb6747DA3cD69a38Ee0b8F850b3",
    "userId": "781859305"
  }
}