{
  "manageEntity": {
    "action": "Update",
    "entityId": "676062825",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8a40dfaeb92ea979008afacfc3787ec675deba5465afcfe5a216551c62c2abd4",
    "signature": "0xba37ed581ab5e063803ca8d2a86ac48be5bbf77be63a20c7714573c384ae527b477f03a87859c91ac1c5fc82f8fe5540e728a63db7b824f88414bc85596c05521c",
    "signer": "0xe5Df73018B54535AE94ee1d767f38a43995aeC41",
    "userId": "676062825"
  }
}