{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7f3092bd3c3e69ec5ae3c3b06ee8387ad64877045637479bdeeb3af50e9c01d",
    "signature": "0x95698fe04441d43a990e289c2f21343b39bcbe13e47cbaa7a1a475d05c3108a014bc1d5f6420d5cb9cdd01f21fb19b6746631dfdd5f3bb18eb8bd9059c07fa1e1c",
    "signer": "0x3268c7e938FD368Bd958d44b728BD13025e27d63",
    "userId": "402526451"
  }
}