{
  "manageEntity": {
    "action": "Update",
    "entityId": "223931932",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x91d0b950f3f3ff9dca27f0faef5a27b62924cbb03b5f6eeb1af326c4f50e1c2f",
    "signature": "0xe331e470084d64c538a1c1f8b1bb50e99b90b3ac19d0141c3c7a1dcde0619697176080994e26f1306d1d5214b26227c0d0d6dc93540abedb41521d22ab90aa741b",
    "signer": "0x6BfD4032A6D707850023a64C2e983743D90C2Df9",
    "userId": "223931932"
  }
}