{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409129",
    "entityType": "User",
    "nonce": "0x4154be3b42bb8af0b3538c3746eada77e0dc30745e5f106069beb360c7a16727",
    "signature": "0x638d44b95ce02d65238635810d14ea9f29bafe8e9b0022a17d86383c232344b71c4e3bf4cc6348f0b77f18511187654d98e40e78e55c1245ddba0226c627807f1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}