{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234310",
    "entityType": "User",
    "nonce": "0x85acea924cec73c3ed70bcd9ba9d497c2461c2ebd695621347b4ef5cc72cbafd",
    "signature": "0xf8ee9521a3de2b1f415a58c847b7b87246447a0faf5e52167beb22859fc667ac0a9eb2c1df31af958cb613f003f9596255836b7156b07aed2a48f6e3c582fb031c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}