{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104832",
    "entityType": "User",
    "nonce": "0x229b7007fd6a1ebb1f2699683b7a20e97eb3b287b295c79111611d655a00019d",
    "signature": "0xf39e9c3f917166b31cbe0643943629b8f7365b25c1a4205eb8d4fbb3b521e2c43b01ae69b09fcda7f6f9989b1771738dd678c8e1c76c39fbac79fb467f8889161c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}