{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "202299",
    "entityType": "User",
    "nonce": "0x7eae2f86913c7c3ac8ec255eb43f0b55cc5ad8abebf86262e145f2531549eccb",
    "signature": "0x31e544ea015b0fe72da036310a81efa40b80cd5f613e1ee23579ac8fd2121b65280eb4581d6993d91ddd62c8267fe7db3b76b0252e95002d72db392db9e2f0f51c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}