{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaac8cbffcca491e3f6b394943c018cc3e431fbde978a0c968d76056524c798ff",
    "signature": "0x62aacc48691437a009831be204e762eb987f36c8e743c2960f3d361a00389bfc10203d8972840c258f8fd3062cb2ce638d080b0809fbcd4bd6e943d40eee204d1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}