{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310841670",
    "entityType": "User",
    "nonce": "0xa2de98c31f818c87fb462c84a5f6f2346d811c48df8724fa51cdd36f7d0f7bc8",
    "signature": "0xe7e67f81489e3044b1f46cf1926b719122915a449b618009e0dc9c2e75262824028ba961d564a7d1ff1f83afdd2cf05cdfbb7d8a70a162783516badfb27e044e1c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}