{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "963788362",
    "entityType": "User",
    "nonce": "0x75a0f92ab4c17285601e5745f539896f5f3d996f50ae01f35f756c3c99472751",
    "signature": "0x1afe222cdda3ec505aebb6a3636897968c9739a94db826a47667da2faaba7f5261c97867703786e619182b2c91d1ccc6fe2aaee758784de11b57cb4035e9ffba1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}