{
  "manageEntity": {
    "action": "Update",
    "entityId": "608583029",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x564d35f1c551a818d01f95d6dba45c083f31bbbf89d943e343cc8b9591017fbf",
    "signature": "0xd65a8140172e7d0b150fc176970947d5de9362e5c46d733eb7b4c1d3ba799e3120d7dd8af439a952031800691a0513a63af2b839e9524fbef93760c4aaed618d1b",
    "signer": "0xC2c9a07201A949519f1594B77177a1C52Ec5F277",
    "userId": "608583029"
  }
}