{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xdea3c710437a6030a9775574872d59614fc41412bb784ef9fbac3cbb5ac58251",
    "signature": "0xb1662fd4cf1eaf6c5418e4100202327e37106660f12b9dd9b2e672b0f94ba7ef50141d0964f7bf6e979bf3c37d895c4e6c05df88a36c8e258f7f74dc1ddb6ab41c",
    "signer": "0x7547B44B7404C0bBCf4bDdc35b8FAa60d5473289",
    "userId": "779235560"
  }
}