{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344861033",
    "entityType": "User",
    "nonce": "0xb1a0e262f18939233ef220db0936e3fca7a03859592b11fa92f43e2885b5c35c",
    "signature": "0x8ea2c6199bcaf40d7a2cf83a0c8a72c9a8d130ca61b0ba6918894a64424f1343599eba6221a708fa598747da5d95f6d6d232030c6fa9a79810e385ce44ed13d11c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}