{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x60ef5e94c475897eaa5b3597357b6827e601d5e583c22c9693f62d926dfc01e7",
    "signature": "0xec9e93ef4b50cbfffd7461ba6ac450f51ca5c2047c0e7e9f73f04548e007ac9838330c03bcba560e722eddfe95cb449d1857574d852ef7cf5ce31f5c97b1c2df1b",
    "signer": "0xC32e30fB29Ef0b4421f1a1A53fF0dfa8D373A292",
    "userId": "164548225"
  }
}