{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55751079",
    "entityType": "User",
    "nonce": "0x6a4292d6203e69555a37b8ccfe4e634594db12a9242f35a7c963bf508d303af0",
    "signature": "0xf95d56b55907e032d26d31a881262b45b697e88b09f13566e51cb0cc8fdd19b8206a9568d8f017b6151423c81a635b4d743013b32c3f54abb09afc6d252b3d9d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}