{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372771",
    "entityType": "User",
    "nonce": "0x5e8056f56068feed496f7670e1fa131c68ca33e752c503ab1d6a825f277296e9",
    "signature": "0x05b2376e4f4e5ca06b5a51e8abcbbd779f6a8cad555478d0a18fb8085b01d0a81f3475c6d2c23c98ef23daa47e94fca4c9c2f6d05c10b9a6a8985948b9942be61b",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}