{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x242375eae48c6fd70faf4d539c8aff877104295a57e793cff16326d7f5a784bd",
    "signature": "0x2b502e3749fe0195ff44a8dd1b95aee2e6b9ff9b96cee7754bcf653accefc9a36c207f8baa62a2eb99deb7d6c9b214a5eed9ebea83f8d68d7b13b04672900bfd1b",
    "signer": "0xF459aa69A07e0A6c9476Cf5A419Eae4CB82Be26F",
    "userId": "431363092"
  }
}