{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "660375863",
    "entityType": "User",
    "nonce": "0x79a808ab627e6e7588c6a182ec1ad59e1a7b7fc02458ed88acbe133753d45687",
    "signature": "0x1ad4b3eab1725dd10c2d05552d77733356301bc601b61b5e0d2c48ce8d0ee5797f43eba46b3370f6b13cb267113c2735196884d342739079d7d3a00a0dbde4b21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}