{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4a14abea15f3198aff240095171c923a9a18d76dbcb1e83e2b8dfae9f456aafa",
    "signature": "0xc818f00240adac7f6bee735dd3713183715ab1db8557041574a361dacbc04a396864eb45f093610ed3d49d6f1b71ded6af32f1576481e343ebc810ed01f4e2e61c",
    "signer": "0xc6BdD536e3FE1222591b7bC56F3Df6d6a8b74Baa",
    "userId": "387770103"
  }
}