{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64866",
    "entityType": "User",
    "nonce": "0x7efe14625e26bbddd628053be535d6b879c35d4397c1e44cd09b8bbda1c3e826",
    "signature": "0x05b41ca2585c6b261c6b51f190a6460bfd54d26a2598ff256caf73cbfd6dc60d58694829eccd379462598c8ecc7529f1a3ca97c7e9f6fb814b602294746b629e1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}