{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e8c73f7177d25d67ed66bfd9c253a502f3ee1a5b534b320323d90b84c0ff48b",
    "signature": "0x14d32f2dca1a115825d7cb9471238e40a185c2a41b64e1e924082f2e65e8e2564a7b4ad67e84c621b0d59968297e8c7f54047ec42638e6afdcfd3b3d26d489d61b",
    "signer": "0x6cfb8F51Ee356753Be1b859092b18929D118a337",
    "userId": "493966740"
  }
}