{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "452386063",
    "entityType": "User",
    "nonce": "0x27580d0f34b9fac749e8bfd7f165be6f0be09f9267f5b43a799dafb1213ce756",
    "signature": "0x1d6737d30403663c5a314f29ed851eca0795ecae6dc1338121bebd5e146cd79c6e88c81561ea5a979973527234dcf80057ea9d04798810fc64de5771384dd1f51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}