{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2a2b36624fe259234cf37677244f5b3267ae021bbbe0beec299bff0bb15e9aec",
    "signature": "0x9a95f54c68359f3a71f4e565cac1547b6ee45e4fce3afcc8ba964d99d5cabdbd5432433d83d8c485ce70e8fba878ed7129a0dfea0feba37b21fabbb5c6c129c51b",
    "signer": "0x46aDFEF96Bc27CFb8A21699816f239282870F56e",
    "userId": "464962618"
  }
}