{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50471",
    "entityType": "User",
    "nonce": "0x976cc2871dda71b1552d8537d5dc8a7d03369f1f005c48bd873278cccac24701",
    "signature": "0xeeef707654fc638bf25490bffd133cd51647426fda8edae2c462180dca077f75726ce6137287cbd62a6002d0a628b6b6ff5c4e2b30352401beb409b94e4291141b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}