{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1031",
    "entityType": "User",
    "nonce": "0x978ae75a1f9963f5977c229e244f31256ab0f9662a65ab258de6e3e3bd223fea",
    "signature": "0x68281a941be8b631bd490a6634043216e370c058d3dadd232b2fbf0d6601084b35da525327e98d4d766544cc1afa20e3e4556714824f4506e6c023713af90c041c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}