{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38429",
    "entityType": "User",
    "nonce": "0xfde7a1813f338ae96502a2406c1d9eafe39dfdda11b6020dc8802e65b1bcf2bc",
    "signature": "0xcf8f2d8f590aad1369e81d689d6907a0bebd6049a3277c2adad7a00b8991f0327c63094c6ac0d3b2fb8a52431b5fa5f00f9b75b6b5ec700ef62e1ad0b37ac9d21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}