{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57327",
    "entityType": "User",
    "nonce": "0x7d903c941354afd983164e1730a1e8ca4a4692fe90b5c1db35438bfcdc376403",
    "signature": "0xa1f8c7da76aa93632e20f2ee65daf80ee91e323aa6300dc63ee950075c8fc9823d67f5208c6a85c9009be3b6b1f904e856dd454aaa2d06ee8708b84fdd61f59b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}