{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1493333",
    "entityType": "User",
    "nonce": "0x4b2049b1e642ad6578078bc3587e04cbb97941c13483492b1f0709173ebd5692",
    "signature": "0xc6ce36fe7c3ca7531011d9287a820005499f3ca9e6647c4fec4ca199fc6b25c40d9db392f54df74c6ed2d328f4eb1accbfc59ca6436c52a31bf87146ae3b3f2a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}