{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133544",
    "entityType": "User",
    "nonce": "0x11015505fc309b8a55b22a80c0c88c25716f70ee96eb1f806f27a50bfa89925d",
    "signature": "0xf7c0ca9dd8e70b74b32450aec14f944b3f30f2de67e810b990324c1445bb7a91661b7e1eb8ae2d28635a4d4dcf8defb7b8008c34a2c2525658d49fbcca8aa8051c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}