{
  "manageEntity": {
    "action": "Update",
    "entityId": "106509815",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0174924ad5de7b715eee9a5b9ef79aed38eee3944d9163fa5a88ad180ff70db0",
    "signature": "0xadb49d625d4403b8a9d1724f17befabb0731ad0877ca8f55755620bc1c13de502f9c72b1cdc77a4312be0309bbc5a3d012b8508e8cad2326d94c8d2f716621a21c",
    "signer": "0x54843d003DCBeEC3EAA58af1cD2BFaf52E4d065e",
    "userId": "106509815"
  }
}