{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12",
    "entityType": "User",
    "nonce": "0x82ac2b2970c066fdbfee18126de933aeee2e69ca9fe16651dba54a8fc98f1441",
    "signature": "0x136877d680e02ed543c4d37f3a2432b91dbd829cfdea13f287b81b5b6f429bae15ba7a2364ba2999fce2fd0fea0565f279de0514260c5b0366196797d0c478231c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}