{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xb04554b6d670cf6053e6877a60ab11d0381dafd0fa3bfbf7555399c50fa0ed46",
    "signature": "0xa70677a61de90214264203fba21a850a065500f411ed4ca973dc06994f4937bd4e5625bbdab173d7dd26a7eed8525b5e2961aff1d3ec1da32ff147826ca16f3c1b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}