{
  "manageEntity": {
    "action": "Update",
    "entityId": "407046354",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb3b3f3abc4dad82d7cf684d8eaa84a08fdeeb834228dcba6b2e17a5454ef364b",
    "signature": "0x3a87d7391762af67ae82704ab85fc6c80298c88d4f812a8e58d816de707ff2f810445c081b0ba30549b3a52ecc0fc0ee7e2d9e42cc0e31537aba4c50c09500711c",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}