{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "565842",
    "entityType": "User",
    "nonce": "0x45ab3984b8d9c957cf1a6ad965c4454d4de76329e41372ea5ddb93c08a4e946f",
    "signature": "0xc99ebc4a899db1a06439e1a759b2b6962b64c25da41ed59db37d5ea19a5c6a2032a3ad947f07989e04d9590a6e9c42f023ffabc19943ae18a166162f81ecdb7f1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}