{
  "manageEntity": {
    "action": "Update",
    "entityId": "247903729",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9b0f4c6306b8a0bdfd79044aadf175df52a49222eea8ac26e64cfb772fc14187",
    "signature": "0x27fba6f331c2b3c5bb63c4ada3aa44eba38d360412810764825788b295eddc3c02050f36321df2a09661406f5bebfe738d69763584413ae4118205eba02bc19a1b",
    "signer": "0xD998291c151d687cE945559f5AD3fe91d77f23Fd",
    "userId": "247903729"
  }
}