{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145731",
    "entityType": "User",
    "nonce": "0x2a872fd067d2bd9695039d5e3911cca769b370b755e1cddabfde45400db26d81",
    "signature": "0x5c4bb9e9ee7560d970d26bd8112c672468790380dbc6b10c3b00e2b92b254eb759eb5eecbdb47cafe83d79d604effb6caa21fb1c2d5267c0e968b01e8ed72c711c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}