{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175201368",
    "entityType": "User",
    "nonce": "0x28cb8102dd7bc1afce2942854378ec20227ba48ecb87aa0b65028c95d15680d4",
    "signature": "0x4127fc5e3d92b23f15ef7e9591a5015ccbf43fe3ed03acf2933b7a832e76c4c66604a0755794ebf50e611e190b43a70a5ba66a2723f978ffff4039782c6eaf6b1c",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}