{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281315",
    "entityType": "User",
    "nonce": "0x856fe96e26d692ebca6989500f422ac1b6e578ebb1aad8eb26e4260f1d6595ca",
    "signature": "0xe29303a1a8e32ebad0edcfdcbda4ffc0bc9edec15d9e76d88f99296d60adb2aa5b2f9d13de2c466d6640b364bec9ce60b02604b364b061095d6d58c9b576a6a41b",
    "signer": "0x063914dBEA89B25900ee50A22fd886126FCbCFdE",
    "userId": "773349352"
  }
}