{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3154276fb39873a5e8f935a781e5f88e1b39ee9652572e17d65f4b22c9d13864",
    "signature": "0x8dda688e6bf29fc98857b429625069f10edec5a836bacf643f22b2d2be55c14c144542eefe03aefc2c51aa970ec35c479ec7c5c957c74881d871010b31d3eadb1b",
    "signer": "0x0A5cb317F11ECcA8f312B9244bBc94830B86ae1B",
    "userId": "614602910"
  }
}