{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937299109",
    "entityType": "User",
    "nonce": "0xc17d94a838ca676eec19be019d2a144c3e5db792d63501c85cf5fbd92a7e0158",
    "signature": "0x45aefe3f1d26e98b4fcbe0773eb5e81755aee3d97e6086bac18b0ba9f9b9a55e6b404f173d2c0d194a26476f989fdb0600fa26a6fb9400aacfda110aa46c03ed1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}