{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08862708fd16b62c6a786162717ebe9bc2e8df367c1cdf85df23832f4264c901",
    "signature": "0x063c1fda786c1d32424c8e81a6757223a351334f826a00925fa53b2591e9f26b1716fefa1b05ec8a0bd4276582f8d5abe52bf5adc93cb3c74976304f0335d3c91b",
    "signer": "0xA3cEd4452Ec88415B96DE1F0BDfc3a358cE048b5",
    "userId": "387447420"
  }
}