{
  "manageEntity": {
    "action": "Update",
    "entityId": "260394700",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe2c527580df3275d9656ed715582345d6546b20f87a40ace49a4c349ea55ce21",
    "signature": "0x0ebd2f9379242b10a30e069ea271eafca45f26dbca1c9cf4236457555016597477306ffc9a3fa21cea08a279278a6b6f22b8e1ebc6253f561954181fd76d4be31b",
    "signer": "0xdec7966Da258F9C1aAf14704bB79ECA0f707cd9d",
    "userId": "260394700"
  }
}