{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451786021",
    "entityType": "User",
    "nonce": "0x844e0c08806a5fa39a8bb845109c854f8ff1c57ea3c216caed50ed7dacbc0f19",
    "signature": "0xe6129deda7864012e20bfef0983fe46a1653b0b3b5b81fd113ee177126acc20d37628731f59bb268322eaefb93fdcee9114d5310c9e56f5d3a01ea0ed235d6a51b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}