{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137423",
    "entityType": "User",
    "nonce": "0xb078879002461449933ad122d6e49e68b6b0fde58087134396255dffd7ec1735",
    "signature": "0x820bbfac1ccf80964fb5d3fd3511826327ae1f1d2c9571a5d39c914be02c6d814dd5e7ec6d7e5265398f0bbf8ff6692b3ce1e15b9866d57914f82d74800b9add1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}