{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1413574",
    "entityType": "User",
    "nonce": "0xdd06c6ddcfa4bf516bacb6815ba09c3c27ee2e8ae0758fb9b6ad60fa799aa3de",
    "signature": "0xe3dd9365bc27af5f6c661137aee5cef444230c49bae1f1b72621c97537e832602bcd9619d95525dd79fa8f0c2302a6d78565d1f82bdfccfae371a099db2d2d961c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}