{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140",
    "entityType": "User",
    "nonce": "0x0bc1f82ed3bea93af61202868261eb245a22e9c33cca353ca45ebcc92f534e92",
    "signature": "0xa11ac641bd80b965afd0b5aae7e7e4f56558a012ec8e6f75773b463db48e258928db11b8bab810412c278590e9d865150b4ed47be5b0b0d1e919babeab098f1b1c",
    "signer": "0x595E8B6455B35290E0DD33D22fa066A22F1d53CA",
    "userId": "988212601"
  }
}