{
  "manageEntity": {
    "action": "Update",
    "entityId": "863508406",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2ebf6af7aec8997990ffe86912c4a88c303223070ad150808ecd0e8808d4cd2a",
    "signature": "0x36df2989ea4c761a07ac69a84c63b161e7f95726eb6707617b560cd18b078515591c916427f422da2ff735f4d9f8e071ab59093694ceef537829ccccb1bc305b1b",
    "signer": "0xf079dD72A5e7aDa068Bd5C490ea8c018901AB037",
    "userId": "863508406"
  }
}