{
  "manageEntity": {
    "action": "Update",
    "entityId": "359981248",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x83306b226060eb6bdfff8cb8ff85fbdd5c55d6728bd4e34635fb7a426e6011e6",
    "signature": "0x7f434e2783ae39e7efb75dc8eba086628239666e1647a2217cc90cba8b340e012e8ea0c608d932d12761c68d2201f22b8c22c7826cd6d0b493ef53ad4574cb701b",
    "signer": "0x66008518C65C48901f513b6ECea53397aDFd1500",
    "userId": "359981248"
  }
}