{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "566190142",
    "entityType": "User",
    "nonce": "0x0fe8d21cdbd4e10c7f4ba112d9aa3e988f1cfec92f0054930569410dd925b721",
    "signature": "0x09ac0dc57813449e6a891ff9681da65ac9745a76cc1166441f8c23c5bdb1994d342c42170f1cfd0965e259eb873004deb96a966caef097e67ac8465c94fb3d391c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}