{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200165",
    "entityType": "User",
    "nonce": "0x8dfab70cea578d7d6a10bc7cd9c0d7a0382cb6f3524b99946254fc0654a8c0c7",
    "signature": "0x23b84d900244af404d8c5125eb10c188fed69973124429fffd7ff2fc6f1b7f7b1833f05d5bfc4867f46408be71d523561596afa27f56aa03422529f41192515e1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}