{
  "manageEntity": {
    "action": "Update",
    "entityId": "144124489",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcd81034e967ccd6c8d25709120e645bfe1707c733d6c5ff5b75ef3a62e7b4139",
    "signature": "0xfe682cdc0a8b15b4a237542e61891b106b73720bc11b0169780b8ee96174c5cb6a09224f1d9d3131eb9ae42b45d421c10caf2fa054194a7fe78a56503b314c5c1c",
    "signer": "0xBdD12e814bBE1d3CDa68D453F36A5d18A51550f2",
    "userId": "144124489"
  }
}