{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374907",
    "entityType": "User",
    "nonce": "0x2ba4d17a957ba66dfc2f0aa28e91b6c014f2f56a7fc89f14d289012e1f2ed903",
    "signature": "0x5bba6435f81d6c6575ee5b4a16220ea71fe64ef9a005a86be016c9777531460e4b0b37b4284102e585320010617871a1bc9fdd257caed094719bea71fb38e4691c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}