{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2c76d840b4663395dcf7fa869632c30c8e19a0a916fbd3c0d4db585a5e2eca5e",
    "signature": "0x06de19fef4c3c75eab9fff1c6185dea244a611b7be39674b5e3f32ca3600f2a04c29a0ea164421baa9f9905fca3706850e3253845c405de4054c007eb6cb88511c",
    "signer": "0x799Fa81223D300f82003F7f458aBE23eb493474e",
    "userId": "455410181"
  }
}