{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3252107a6326878aacf595062eb687e57fd669e64625d17287bbbf08d7d3e741",
    "signature": "0x3cc72a28c0ffb7cafffccea80cc1e09dcc3b67696a3d30cf2e1240a1c035772e2032de0a3e9edb3c69b948f095e6188051c824c5675b70e57d935739cca28cf31c",
    "signer": "0x9E576B822F4873B0aEc2E4D46715EeB5fB00936f",
    "userId": "941343958"
  }
}