{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306603",
    "entityType": "User",
    "nonce": "0x67f1f41807abfb738ae63b50bf7d8d36a5e06c9e9fc36f4af485d5fdb5663f8c",
    "signature": "0x768322c699e83169f7f7f8c9aefe42206d96a2c1199ea2181ea9c4dc9a1d06c3611b4bfc8c5586140a15827877dfe89e22334f79fe22663048367eb3aaed7e581b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}