{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991796067",
    "entityType": "User",
    "nonce": "0xa7013433e353d7bb1b7909766ebe947d9ae4cb9687b1cd93fad01d77c9f34392",
    "signature": "0xd951deb35f961188ba523a999179c96d0124745b684217b10aeba674f0cfa9ec5db62ceee64b13ab82b96e8309fb8f3bad6dc2dd304b1dffa83b90e5bf0b16301c",
    "signer": "0x9de29362DF595E6949CaA2820c5c28c3D6b0CEe1",
    "userId": "857551474"
  }
}