{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5c9b4ba1d6c4eb96e6d617deed1672fba4a3ed5ff6865dd7a88cd4ecb02788a7",
    "signature": "0xfd1e0900bfaf0a798cd8b78c78fd99a5ced7c2e565287b9a5622d14ffa5c24ec0415d2bf8840b4e09d3c8e662eff2af12f4546c589ee6489132f932eb7d32da51c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}