{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x05bae84cecadf874919daea1784d5612402007812e4228ad0c7a15dd5d87b15c",
    "signature": "0x681830fd3fbb2cca5e7865669805b5c0d5a71fc11a6a912d5335b8e68990d01f54523cf5b3dea272ca0c41b541fc2db04779ecf6701fb05dadf9ecef716ea99a1b",
    "signer": "0xc7444D751846D46890E4eE84063c56314e8e47A0",
    "userId": "525467429"
  }
}