{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2749",
    "entityType": "User",
    "nonce": "0x86eb2f42f10665544214ab98e14885b80585560e498db3f69f8e614f2d8a6464",
    "signature": "0x19f532aec44b83ed45fe1dab543799ee0d21f28ffefa5df518c07f10eb1f685c175b2b7a23c513153236ff50999003601e163e1ef5edceff20ae1e753b09ee711b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}