{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271909",
    "entityType": "User",
    "nonce": "0xa62016a8d5f1daf07896cac31f260f7750428db64dfb20249036351f09cbf19b",
    "signature": "0xec162c181ee53c3696fd62041869a3201ac6f0d7da0c6c626390988baec7603e2d21d68643310e6dac4c048d5b5a255df53d5e49fc6e9cca8d0a31eb56cda1091b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}