{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239519",
    "entityType": "User",
    "nonce": "0x9297a67d20e5f40087f1d8bc8ed7ed70fa94198413722abdb402727cfe5dec1b",
    "signature": "0xd71c7c09b198245b6a8f612472037317278519b4057e956342883f0a16e1f9a026b3a996c9aaad2d3084ecc6f972dd3394af145160b1c1a1fcc146c4ad3fec5c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}