{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x92d1e2ac7d4c736e3314715fa6e4c6c4cd759dddf6d0ee4250f2a8196dc8bb17",
    "signature": "0x45db78fe5d63ec83b93e66668f118bdd267eee3657ca8b77197cd8db72f6c8d304d8560d8542fb067866f9c080525ee2c23eee20d672cefe83866129b1bfa8181c",
    "signer": "0xb1B522e4c290853bC2ABb1D802d311A7EB1e696B",
    "userId": "94334210"
  }
}