{
  "manageEntity": {
    "action": "Update",
    "entityId": "289612370",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x52e7e4316b6a4761d4935ae33f2f4107556370212951c38a63b08da957530d92",
    "signature": "0x993f1da32600f2bce0c3977fb675f141ef12541c711cbc5dea66e6be48d3e6296c9e88a9e23c502e6662c6077af1d22da4691c754fe67287bf4222f0e93f2e4f1b",
    "signer": "0x8F182fe722FaD992BFa8591dE7c1515A4509F742",
    "userId": "289612370"
  }
}