{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "601282125",
    "entityType": "User",
    "nonce": "0xe187c88e81e03d91fdaf2ef924f05f55aa9ab82c197e57bd0bfa589c24ebeabc",
    "signature": "0x66c62401b883095a5403ecc8a1389fff7ac2c939a99008437857fb8eba3dd56d3286ae3732472eb8133f923e5f4e8ccff034c00387c84a225d0ce55840079fc31b",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}