{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3b8f119e931ad52d3d638ce460d8cc48fcc730b77e014609b490eda9bd3760e8",
    "signature": "0xb103496c707dc766d73610472f6ff8ae02a45cb37bca58349a9115f850c1196d68f95cb238caba7877a4b133bc619b9c7d2420654a436f1c9c7c417f492ed49d1c",
    "signer": "0xaFf213436B188aE2C934F5752Ef397390A39Eef8",
    "userId": "805328936"
  }
}