{
  "manageEntity": {
    "action": "Update",
    "entityId": "282103983",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc4eb1e9ee9d1f7ca3503cdcd9842e21e84afbad3ba1cabfca51fc25dd5daba44",
    "signature": "0x7a9bd787d93ab42d80a9a1187906f91bf51e641718d99cbb2b30632de0b761257417d7221b298f3be2e9bb1ef70941381b9090edd57517d853eef988540896631c",
    "signer": "0xF7b51CB106169c42649Adfa4D792649E2b3D1902",
    "userId": "282103983"
  }
}