{
  "manageEntity": {
    "action": "Update",
    "entityId": "455351007",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdbbfd602f8cf5b6a33595de400ae88f4de08ce86b1c0be38d3f3fdae24129e1b",
    "signature": "0xf2a610e23b7b74221ff88d6f40278edcd72099f177d4bb5424fdc0ee3cfc48a301165461a7fcc41423ea0a627974d416019235264d63ce8e93bd5e65a6b2dfd41b",
    "signer": "0xa361a0514021Ef38D01F247402b0757B5213cc18",
    "userId": "455351007"
  }
}