{
  "manageEntity": {
    "action": "Update",
    "entityId": "549997769",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfed909ccbd2a808942b1e48e48250a5ccf21cb3a7204dbd02395b496ba862bed",
    "signature": "0xea2b3a128e90deaaaa83622a6869fe90027e48c4ca95de47e06b8a9d522982662bce94eff65afa41146382785c392573c0bbac01bd959932939f09cbad911f9b1b",
    "signer": "0x8593136Ab24F551bD1dcf6Ee368c598B49FC32Cb",
    "userId": "549997769"
  }
}