{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5857",
    "entityType": "User",
    "nonce": "0x64cbca97923f0e0b3dcd182180a0fe868ec3ecd8fba7d4305aabde27739d531e",
    "signature": "0x27ff752d10c3bd1f6ccff289907fce11f233c95e951d3c97d2943cf14efff1657ff92ea35629280ad77acd1f0051fbe712735a0a9dc224bf5ce3fe3e52d4e27b1b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}