{
  "manageEntity": {
    "action": "Update",
    "entityId": "814929010",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x577a4e8c12cd82fc8b598c34e8ceb2f630db561a288f8589e71f02c15d20dca0",
    "signature": "0x202ebea373507b8edf64c81505c26c9ecc2c5bf14f2024c118063dc414d98f0015dd30eb40ae6d9876044b5101a77cad19514f8db1e4c15716ead359b2723d341c",
    "signer": "0xEf3d3c6df875c67aa35e9F473e01a47D659c95f9",
    "userId": "814929010"
  }
}