{
  "manageEntity": {
    "action": "Update",
    "entityId": "324170795",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7cedi3bm3rmcalbza43nayrbzushfvkxppzgllex23irelutbjaq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1972733550},{\"type\":\"playlist\",\"playlist_id\":1795117483}]}}}",
    "nonce": "0x456f2fd40a777bc2ae2c2d39d25e62f0df70d0d949207b12b74075386b0f4730",
    "signature": "0x0d2b1930d8ec5d731365d85f7261eb01d9b80a33186aa1a50c01efbc782df54b3098a8ffaf4011b8542e1c9690cffae9539f3f04c5a69813e532e186d05feb5e1c",
    "signer": "0x7212FC9b44b2BB370D62E8b98dA3f7D74c307696",
    "userId": "324170795"
  }
}