{
  "manageEntity": {
    "action": "Update",
    "entityId": "559081263",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5yvea4jrhn66eqlnkka73u5z5g3scyjtkmf75xusa5iphbjmmmda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1138252318}]}}}",
    "nonce": "0x1f4d58a7d08c887641f326f021aec682e1ce4e9dabf47b5301ccae1fca1b3727",
    "signature": "0xa16ed7af22ce2d66e7b5253889e445dee3becc695501b0bf2c270301ff7e1fab3706e209eb9af926516e08816d69c3ed5f443fa3984d0399c025a016e791a54a1c",
    "signer": "0xc65dFfE1a1134FA9B16cFAE24fCc4CA150E84FF6",
    "userId": "559081263"
  }
}