{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xc637b846470df3c0acc77f934fb635ec2673be90e886bb08d6cbf3a2485bde3d",
    "signature": "0x0685895b675802cc99d46c83f974975c886e82d175d08d5a1e9582638abdd417696fb7b36b9b8815d6c393ed4652d2fa3ce400a4e8436a69a86b6a268945c04a1c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}