{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882325",
    "entityType": "User",
    "nonce": "0x665a91a75e33992a05e82cacae73f6cb31712485c20d73b7cb7f4c4e79860111",
    "signature": "0xe148537f7d0c0c18bcc40a5eddeb43b09089a35dd697b21a0fa6380b2eb4de61250e2ead38609f16c16b2b41f400cc35a6849a40a4ee82ed66beeea87a0086531c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}