{
  "manageEntity": {
    "action": "Update",
    "entityId": "60831583",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x678d5c46f503f95a38d4206cace4f62d5880680bb821a1f0b8f72284eda9a869",
    "signature": "0xfafb60458114ff217d856203694236dc7338c3de98c2791227cf3a407f0ff456441bbda1e2b0af08cefd37061e42b2123b3bb631c214ad52d5ea68af3eb8dafd1b",
    "signer": "0x07D513F4eF8aF3fd73093aB1F613ac2B7D16b7b9",
    "userId": "60831583"
  }
}