{
  "manageEntity": {
    "action": "Update",
    "entityId": "881446128",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera26jdfmmxhk2miecctpqb2cgkbfwbcu42gjwugxilxi5ahlbwucia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":586009028}]}}}",
    "nonce": "0x4a167d0fb0e511d0b129100776a982d3e9ed988074a262ba149d23fb0eafbbd0",
    "signature": "0x19a8981c0760a15c165d5e3562a3b743d29fab464c03f03e9e11f5e6c7aa4fc87cf266192866eafe84d078eadb7062790bec12c125e44da465ec36155b9dd2a51b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}