{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326837",
    "entityType": "User",
    "nonce": "0xb7cd3ed81c21f248ae0325c7acd9afc3b67e85dd65a88d8abf131855bd32f31e",
    "signature": "0x5c39309f6a6d071027517aa9918828b9387197013b3a2f04a87e641bde35cd430bb19515ad59f7152c49209f44d0d4304f8d052ef9c98f922aa1484dfd756f7e1b",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}