{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x45a6aa66efa32422e9ec3de14b08be3c0294ac811509dc3b6b5359d1b3df3784",
    "signature": "0x6c6b26ac5a6d97393ea771acecc303046877e0a6431af8d927b209f16e34ced55a3d0622f888a7a2e621114d04d2e24809438f2822da6fb7b5f31ade6fff3f4e1b",
    "signer": "0xA7e5b3c6d06C38A408547F8fd01d4745C2E728Ae",
    "userId": "601241019"
  }
}