{
  "manageEntity": {
    "action": "Update",
    "entityId": "869058817",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x58aebc336263cd1b8ba8374af34d3ab834bc69e6c9e1d8862ff15aff879f9f56",
    "signature": "0x7c1b511d338afe3f01ba89b6925f4e595d38fe8c576f5f96728fc393189bb2594f12152f67525fb94d2a7bc3195a3dcb362e40f675671a1e4df90ef8a6a5759c1b",
    "signer": "0x3F376de7e39D49125bfD9C68b2379c67fA79a9Aa",
    "userId": "869058817"
  }
}