{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157491",
    "entityType": "User",
    "nonce": "0x19efa678b428a9b69c5830d7a4923503ce2c74a99a337f560866a7da0a9fe809",
    "signature": "0xe6b6400ca2cdc855c2b5cf13146e190aedf092a5b9ca489c77149ef232a4a6f846dc267fa95ea60626a1b337c371f10b4abb0d1352df1fe609a7ae77bbb02af91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}