{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152097857",
    "entityType": "User",
    "nonce": "0x70324d7276f7827d153de3b3197fd7fdd5e9375b0d12721a127d72605bdfa835",
    "signature": "0x4ec4277dc052f2e4c8419b9742a95ba7842faa6985c81dc42e8489ba26c86cd15dc7df2754e11dd214ca6a977d1f45e00a82a1182bd3fdc98a590d2476f9b7571c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}