{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313481598",
    "entityType": "User",
    "nonce": "0x99f04214547ec7118a0d585c5c7e66d8d69af1dc9b38443a37ae91bbe01a230c",
    "signature": "0xc641e59d4438edde02c8a05c65d8b8103ee4b23296fa92c55c4248e2ae3738085aa9648d979eb7acba576d1a61b2892d354a99aedf696a3e5e956364d2ac5f3a1c",
    "signer": "0x394b0e3f13F703e90bc2fcEAA7EFFeB9BC409036",
    "userId": "355567674"
  }
}