{
  "manageEntity": {
    "action": "Update",
    "entityId": "440680049",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xee072e90b344553dff54769e5db5f5589f49ccb65042e11e12af4a9e20eab0a4",
    "signature": "0x26a832fc1400de6c14a182c8723868fbf64356407ac26d30406f8af102820ffb40fc285e65e93bcae3cab60983ea9afd5b68125f7f2b71a53a65c19cfddf56591c",
    "signer": "0xEB85867F957F2FE571521B2EEdBEF6FB4Fd9FA42",
    "userId": "440680049"
  }
}