{
  "manageEntity": {
    "action": "Update",
    "entityId": "885377074",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0d3e380dad57460708a8848a46ebd83fc00a4ab1aee6f66f82c3bdbc9fc25bb9",
    "signature": "0xe328faf3f2bfd36f7adf2f7968481c45e05d82158e2f736dfd4d619a3049d2293bd550ee8af195935536d919637ff66911431b6fac00a0da710ccd1a28653eb61c",
    "signer": "0xb165ae121a5F5cDB130437434b9EAA81c2f3434D",
    "userId": "885377074"
  }
}