{
  "manageEntity": {
    "action": "Update",
    "entityId": "487419102",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5933af26d8b92bfa81c6491bdf71469954fb765fb8eae894cbcee0632816b943",
    "signature": "0x1e24afce9865b9fa2c101b2b5c9ffa83c89f4723a1649727dabd1e460e17a29f0e9e0efc6e455427609f912a63a87deb6742e1032ff95a3ee9184f300e21dca91c",
    "signer": "0xC9271b33ed13b4B466C336f6Ad72bA237B80A8Ef",
    "userId": "487419102"
  }
}