{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1c8631b0d00a5ebccf00b010ce80e9057e3286bc68d590cb3c4ad66099c125be",
    "signature": "0x69f8b78a30ff1f38841baa32adbbc4b703718cd72e37d6e0435d666fce524f505b7a451dc0316367168beb807061a42f6fe44c9952aa7d48a8ff2f0e875149741c",
    "signer": "0x3bB2dd27C4DC276cebBB21B08f2dAEAAbeB84BE8",
    "userId": "234318111"
  }
}