{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0x888982b760587ec9f2d96e71c85927f3b42d8ddd48fe774c85d77d7a51281d50",
    "signature": "0xc5cbbc6eee9d2cdfc959c9dac801f1a3a80c40c1fdfdcfa07119fe98313e72e1727f986eb54345dfeb056550954f24a9ef0268565b42b381a1da1910e12fde281c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}