{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389958",
    "entityType": "User",
    "nonce": "0x459b10394c0ce5919a7544c3e0d9a929658a8661e31d5803aa1514637dc701fd",
    "signature": "0x7535a5342a91d02e9cb9c8b50d0490c84e255ea6b169799d9d421e27a64ccd96344e71c886f36af02be22367c042413f98c654c3a78824b988cfab7b3be962381c",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}