{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1501981",
    "entityType": "User",
    "nonce": "0xa1ecbc2125db6f9fe552a965219e8a4d34c878ba2edff7bb92cce03313605b6d",
    "signature": "0x68f78bc4971ea46f3f8fa51044cd8af9669fedb0355dab1f90aac8dfbf4ab18317f8e254875954241d35457ea31a690e7b675b4c55421c00e7758fb6c432d9ab1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}