{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04b01d9fac73c1c77ef651249e66772e3bf765b48ab65b81f5c4ffbefd7b5b11",
    "signature": "0xb79c23dff46f538dc4585c39b085e8bf6e1a1c905daadbba4b63431a5a867a45502c7c0f2c5cf7294a40d2262305c216d4820940d724b0031dec7936063e231c1c",
    "signer": "0xAA9Aa5DB83C4b19b2995199cD38A88bdb33BFB49",
    "userId": "231915529"
  }
}