{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3576a8a791b9e1135f60400e5aab6fba75393c6aacaa359b1fc4fc0c3988c2e0",
    "signature": "0x0c13b6f49cc1728723c359a4fba40a7229c31a0734c19dbde76e8bf69e42ad440afc165c85a19d05bcb378cf0be285e1c1736dbf7f607ab7598d61771d5464671b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}