{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146911",
    "entityType": "User",
    "nonce": "0x731dc713fd8a5076f713a923dbd95bdf7c318f0912ecafa11c61edb8738f8790",
    "signature": "0xb617aeb49363c4fd6bfb507a5085524c163261226e32205821b89c167f8dde6b16a8556e0a0e3f0fdf144eba7b7cd3a9e1c08d4f77fc936a3ad55dfbfddebc6b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}