{
  "manageEntity": {
    "action": "Update",
    "entityId": "342378154",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5b61992254ee626de8f9ee66db4df0b71c68f26a33d771072dd74f956976eef8",
    "signature": "0xda47708d179884191611d2c624d184e66e4f89d89c7d9b8454c04ed4136ac1e05d5c5aef3e5d19347fcea56389eda90a1d30a2c2904e5674dffa6f0039b07ca51b",
    "signer": "0xaA70F76aefB1aceCB78C94D23C16633E39CF8fc9",
    "userId": "342378154"
  }
}