{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906542957",
    "entityType": "User",
    "nonce": "0x119ac4e9cc9c5f2d49072a9eaba98273573a3cd3d02ecfd4cffe7ba727808823",
    "signature": "0x79cecdc30eb170561a76f0284f344d26bd8a10ca67f5e663404ce8e270ada7442825247118d0d75bab1e90f58a7a8af739e19d0bb3dc064f9f49560a28ae245c1c",
    "signer": "0xd41d03fabc8A113A5e32266E5645Bff54f429099",
    "userId": "154510400"
  }
}