{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x91e0f91631fcce53d157088081f3fa49dc247a7e2879150398343e5e6bc760c0",
    "signature": "0x0ffa51e49acd41e68e24be05abd730a326d82d866375562e00a8d09468003b634dbc0a2d29bb4e514f768c752e87bdf447adc8490d351b24da0e91ed82f0b5321c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}