{
  "manageEntity": {
    "action": "Update",
    "entityId": "773349352",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9488d20095d73c175d725a3ac94c2e75b27a5bfa845405a255e14802883e23c9",
    "signature": "0xdca0b887c67aa7d8e26144aaff72944c1b9e7b0a0801092dfdabf6974548a0070bb48fba8b2f6027d67a1ff9478fa88b7e082633e3b42ebceb356814abd11d231c",
    "signer": "0x063914dBEA89B25900ee50A22fd886126FCbCFdE",
    "userId": "773349352"
  }
}