{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5819",
    "entityType": "User",
    "nonce": "0x3ceb8834fda16d6ecac1c89d0a9b95d51ca28d851cf8e1ca3609be502d341e1a",
    "signature": "0xaedd3a3dbaebf31c8c8063cb0363da43dcae9550b579c2ab6e7f0655ed93f71a13c1685eef42d44d5c2fbcc9389000477e0a8a88a917df1d70452287319425391c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}