{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2860",
    "entityType": "User",
    "nonce": "0x64f3083e07e971484f6c94342ca0443bf1281cc863ba240592786859e8898215",
    "signature": "0x578130a62759bc2cfdba5c6916e3c50c7df46d4d1d306f92198cc9bae7e2bc32283df71f6d2db23758094443630f9af1c474720583c1c27a6557232bc37275481b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}