{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964877918",
    "entityType": "User",
    "nonce": "0x0b8842e6cdce086e87edfd44ef0e03470e5ece0174b1552cd7ab43490903f8e3",
    "signature": "0xee0c737136800e55e8c257317f58527780ae65a77db26404cd38935d1d08a59814af7038ee46553c7060ee9ec2269831ea8fb5b725e5840bcb50a3501e69338f1c",
    "signer": "0x03eBd76f03fee1b68d042AE492e5168848BEb443",
    "userId": "180170571"
  }
}