{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43487",
    "entityType": "User",
    "nonce": "0xd58c69a292c240b3ace6dec0a411a1542c3f67ad93f325165f9db635a3032e62",
    "signature": "0x7496dd97f0d2a64542f8353a921c26340bd4c8203a0cc00d5de50250c7a4cae7762bacf36956bfdeb46cf077767cd56ca81683d418970b1756cb51cab8bbe0061b",
    "signer": "0x222534475146193b99B68F2E3830ED2b44307C2D",
    "userId": "991417453"
  }
}