{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0x04d90a9068a45e0e0d180188c0b3f443fe2812adebbdbab56fd68df5ac388180",
    "signature": "0xd3a617702d86f2d4f5e650383f245c5856586192a582a4752952ed04446f8cad33d7ce064269137c630c8ad0b8e0c24fb366ff1ce11939da33258351064c93bb1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}