{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe3d747d1c250aadc86e21fcb9668a99bd21ab55ac818f2e4ee34357e84885d66",
    "signature": "0x1603e4dd2f35f5d374c3cabe1f98a32289276fa663c8fce88e7c6ce175b424a5704cff94aea2c8ace069b35025bd2b551d212da1c164805c0f7b1281d45ec8681b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}