{
  "manageEntity": {
    "action": "Update",
    "entityId": "1415762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraahgctou7c4id6tprlbddi7jascdab7rj4kbeh2pwoaby4wfvysea\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1087030952},{\"type\":\"playlist\",\"playlist_id\":198813583},{\"type\":\"playlist\",\"playlist_id\":792753297}]}}}",
    "nonce": "0x8172f736bbca33e61dd8a22a8d7e2f7d7478c3373d64b0efc4e26accb959ef68",
    "signature": "0x9bdd211fcc44cc40adce2b4ad639f75d78b1b4153c697c9bfef1d36c270bbc1968ca57697c4385dba9aa3461dc3638685b070092f3bc87a6931a56d81021b0021c",
    "signer": "0x803cAa47D9F525D1180159ddCAC9575061b200B3",
    "userId": "1415762"
  }
}