{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "371065",
    "entityType": "User",
    "nonce": "0xb3796988e146f9e99206c594cf0178f60e67ae32168af74dc1b7ca2623afe89b",
    "signature": "0xb2be9087a55fee02e189857a395700b522170ac8ef7aa890e5e5592bbe336a331721fc503d386e77b4eb9b8d450a0504ba6c037612dcb53aa945e7ce702105c31c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}