{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "905219052",
    "entityType": "User",
    "nonce": "0xcf2c345e5312a2c09d99761d37e8b543db00b48f88ba41ff5e87cda921bdd9cf",
    "signature": "0x510034364694f69c9fdcbfcb73925f3b7e4d88c583a4c30bb5687e1e4bbd2cb62e0896e1b29beca3875258e73cdfa14405bbc6c6b10e61abbb979393cde07b431c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}