{
  "manageEntity": {
    "action": "Update",
    "entityId": "630322003",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x989b21086a64de1136e33988e31eabe342dd8ddbb99d13a661c85558166a0fb1",
    "signature": "0x18d34b2257dddf352c81aa350c5a1cddc159c56ae9297a46e1b290e8910b77ee5a3c64d4c837f5f84414f0520b307c85fa5928f4fc2bf0eecf1e4ab00cec783c1b",
    "signer": "0x67cc99D80c366697AE8f8E8981c6447F3f87C15F",
    "userId": "630322003"
  }
}