{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc37a09366de73245e3754ed3fcc92763e0e68f04628cb4376ff366b1ae86a0e8",
    "signature": "0x1e45c3df949bf3d9cf53cc6abf26e80cce605fc730113c947003987fd34189172b2c2a7985a4a2b7692cad077f40b563ddc1dbfc8b4d6b3771d19eeb0cea360c1c",
    "signer": "0xBbC76acc89878f0cef68B16B657aB14f79B8fb09",
    "userId": "25725515"
  }
}