{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x89b98c894a68e4d5fdcb7c665e3454a5fd9d27fccfc8bd0f55c70134c7046334",
    "signature": "0x0fa57c47db047e379f60a28eee14f0c265d35a575a78722964e1b9203e29be1744fd0118545fd3dcf0dc883b5e0b7d3b29cf6398c53d5d540daf2e8b6c198ddc1c",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}