{
  "manageEntity": {
    "action": "Update",
    "entityId": "21971210",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc36e2a2ff1060bc5f4037a1a4449be09ab82b25e273633b0cc1115d7bf719e7a",
    "signature": "0xf1a61dd1aac3e3369e8336b8e6698d7e81f6fac72a13907b53edd767176659bf70288d9e982915432ab2ac27ac94e1ba381f0542aff08ab9a0f662d3b51b3a721b",
    "signer": "0xeC98A6dd35C361d0579625Aa50E443798f3f7c12",
    "userId": "21971210"
  }
}