{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xdcb519e11a0d947184d28d3e26bc81211552c8aea073465d7e522e58726ec983",
    "signature": "0xfe2c7948229d8f0a60e614e0fce1309ba3477351003c5cdd15f104881b32f34b5537b396ef0d0aaa681d2e47661d9970aa04e3b77aa9dd50b76855a7b45327521b",
    "signer": "0xA8801c65Fb9C8F6e0bd56DBfc22cADBf2D4aD77A",
    "userId": "865218773"
  }
}