{
  "manageEntity": {
    "action": "Update",
    "entityId": "63271201",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x188a31f3d185397d36182e04c5a5546db30821eabdd496ae6d696dce2d8be474",
    "signature": "0x25bc626d44eae335d5f2bb89de6702fcbc8362ad03f8935cb7613d9abace8d7257d91176ffcb37a730fc095f857a212f7538527beffe580cb9a1d709de6e5b511c",
    "signer": "0x31bd8320C5Fc8fc9b8Da8C58B34F32dAB316ABE1",
    "userId": "63271201"
  }
}