{
  "manageEntity": {
    "action": "Update",
    "entityId": "854828390",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieralerp3uv3ozjpyaweniys645jcsu5e7pi2ak4sigpfia7ls5bbiwa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1833489616},{\"type\":\"playlist\",\"playlist_id\":276942565}]}}}",
    "nonce": "0xbd72a43da12bd752283ca750425bb9ef4383ce82313bc83f475c186d665aaa47",
    "signature": "0x6bd3ba2cd6dfa69ffa28087c12ffeca5031e2f0f97581eb95645ee52c65a4eef66407f15c4eb8baa672d79594f845465b5c1115685d162a00f4ef1e829b32ac11c",
    "signer": "0xa8BEF74bDb7cdBA1D7E949228F5112f6af3276b9",
    "userId": "854828390"
  }
}