{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148",
    "entityType": "User",
    "nonce": "0xc13ce1240170cb83b2747cf7baf26d2449e5c1d4c4d2c9ac0858aeee5244bd05",
    "signature": "0xedf0e79b1d670185402b59e47eec1371765a8209f802038651fc7ac55c6878725436113fd7f0922ad171fd07a178902e30f4672ce2246268e16a33633a3d3f7e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}