{
  "manageEntity": {
    "action": "Update",
    "entityId": "276926747",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa49732965e6561ee52a45a9e594f6faf9b5f2f2fb79adb7324a81ad1a7570d7b",
    "signature": "0x87ecb3b89d52004e92984ced80bf00b19f3d06462cb7a819ff36fe91f6c2671c7e914dd4c688fbe2277f509bdbaf2f0460488239cc0a9e4074f2599b7dc4c9db1b",
    "signer": "0xD1CB58fec7ADDcf312673c13D3c407ef8Eb01262",
    "userId": "276926747"
  }
}