{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbff3594696c1daf4845967d30db084e52659e8769e50924ca9f642372a0fc46e",
    "signature": "0x07e22164323722cbb6ff76b206d1a1fd755dd6db2e7325c59bd3c229b88edc5114b67c07aba466e110a3af51aed3eaf7c0256e50c3bf39e6fe7de5b851d880041b",
    "signer": "0x82cf0192633D351a394073dd429E878d25253885",
    "userId": "397617545"
  }
}