{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "324938722",
    "entityType": "User",
    "nonce": "0x744bcf7a3633e7c1d10510f15a5101931f8bd65b18e37f32c793f203826b53b7",
    "signature": "0x59a76fe89dc0f73cbabb0f2663b09b744dd5c1a855b3dd716a85678c9ba41811064486b735a416ab4c6710b07668d0837266d6d8f9c360b70120f75eddeea08e1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}