{
  "manageEntity": {
    "action": "Update",
    "entityId": "31322821",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe31137fd6ca53a699f93efa8f8dcfaea2c9b0fe43c0137200e9c742286fc7114",
    "signature": "0x462d2360cf25850efb0de32b4b21435203511a4098a28f23e3b0c2aa0c21277e75f95627e1f5bd5e25402ac4b2ff355c8bd4a27ef6674b9dc60e93f47f1102781c",
    "signer": "0xF3daFB26A3117Eae86f7Ae27BFB4a982CDfa4C28",
    "userId": "31322821"
  }
}