{
  "manageEntity": {
    "action": "Update",
    "entityId": "211532313",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazi42qx5e4kwb3ikzob574sran25wkrmtylk7ok7dve5tb6ua6q5q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1136293617},{\"type\":\"playlist\",\"playlist_id\":1621663487}]}}}",
    "nonce": "0x389aa7c86f701e14642e05bda4dc395ec30e9db05d477bac45bcb455a65f824c",
    "signature": "0x2712d1c8fa1f72f88c4b4201a0b5a1255d8b33e0f327b4475992b9fd19cd23a2281a19f05d2e85b02b3fcce1ec48863403bdbee1ea338ddb6894b2cc4a80cc121c",
    "signer": "0x493c721c47344C3c5C9fB44bD4576E70CB4Ca70D",
    "userId": "211532313"
  }
}