{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352445",
    "entityType": "User",
    "nonce": "0xa95e5d3a6a95df1a79fa2746e596c1774c1db1761b850679bc7413d0e1e6077b",
    "signature": "0x1677aaa13d83869179483de7849b69805ffca30f29cdd836fe7ceb5b3c0244f32dd8f50e22286ebaaf0c47d6a80da970e30dc95840a90c808948d206b495b48f1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}