{
  "manageEntity": {
    "action": "Update",
    "entityId": "785201",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7e96edf94c4840ee2f7f331868b21d4010b834cad8493f4955d2f34a7abf39cc",
    "signature": "0x6ba50ca12b64d2e84b1a8a252e23eab2009eec844c3d62bace3ce1bae1d544a81a846fcc9ca641fd1cf1a8df987c55f069ae298613799c12af5ae47b9c22acba1b",
    "signer": "0x7C3854df2708D5dc9d22bA310Bc0f73C074f0321",
    "userId": "785201"
  }
}