{
  "manageEntity": {
    "action": "Update",
    "entityId": "69573253",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x37c83706ae7064eedc4665cb330164e73eed3a9120d70e49cbeb368a31b647cc",
    "signature": "0x3a1e73f7eb0dfcb5d431fc92d87751f22e0450f79d184b905d5cc4e563a7ce56694e8533a3f9051777e397608fb739efc1eaf7e80fc1be684190431963243aa81b",
    "signer": "0x21B42f41d4316520eC38eA1776cba1328574aF01",
    "userId": "69573253"
  }
}