{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea88cc57d5aef910a03910aa1a5abbdcb0fcb7a2ae92df1ab3c8ce0f39026479",
    "signature": "0x6cb1833d64a27dae5112795066e03ad03d9d6843fdb11a636a3c6701112f10a62da530142ea8dded559d32130c59747840c73fef05bea43e6a9c289263f788781c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}