{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xce61dfc33e4aec57a1080bbcd88b691290d8dcc941bfbf87e019bc597faec36c",
    "signature": "0xf1c69cf2761afd2e13947bd7268d4f6dabf11227ad6047e4867351032d7665644fa7d5c91f12fc368f0aac43b1b24ad15d761c0fd8c7af9f38475792cf3645711b",
    "signer": "0x09a607F909992380Dd260357Cf52Ae6bd2dA4fcA",
    "userId": "621067709"
  }
}