{
  "manageEntity": {
    "action": "Update",
    "entityId": "302687141",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahpvodnbdwb2yyslas7iqcw66k2p3fhs7x3uvpy6gbuzb4jss4nwa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":259728194},{\"type\":\"playlist\",\"playlist_id\":328781447}]}}}",
    "nonce": "0x737921578b9f38c0ce8cdae307aeb913e7ba9325afe1b0ee1286a24225897c25",
    "signature": "0xa3b3d7224905cd2acb3b9cf040f9f6aea505e96be982d84149547d2d809e39977b1b7de0fae9074b7a257f42907e3e21df42324e6c7d5fd286ee117bd6d470ee1c",
    "signer": "0xc0f76D7a0b4B28398c597aBbCBC0ce0d51bAc5bd",
    "userId": "302687141"
  }
}