{
  "manageEntity": {
    "action": "Update",
    "entityId": "886744869",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa9d573901892be9122c38a004c6e63e7229905581a773417e961406f09321a46",
    "signature": "0xdf2bd455c1d257ea02cae28db9e6bbbbb0363bef9497361977142ba0b8661d501d6e9e54640a58fea07f51b7627f96489a389717de2c49a3fa628cadae0c45191c",
    "signer": "0xA25aAd0206917611edC6Fbdd1632e805d998f1FF",
    "userId": "886744869"
  }
}