{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51192",
    "entityType": "User",
    "nonce": "0xe0cf323c96de258faa0d033df60cd3085f6cf19cda9fefd95d0715243e39f03b",
    "signature": "0x57fb482375b0cabf78b24508d807d02f3c9b2251097907366c3ec3b842a0456d417b7590ed91684db6335ca64a7685853a691dba08cacea0fca53531c8e3f0021c",
    "signer": "0x3Dd98e6746E2F92C0a4E1a87076f07F2F0d58736",
    "userId": "474827746"
  }
}