{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "628620",
    "entityType": "User",
    "nonce": "0x29a5b4af3ae078987c067d88ced5f7fbdd0e76cc9bb268d6627b15b35c153660",
    "signature": "0x7bb651f2e5ab9cfb8c3dc654af985380b161bec1d3f9e1f6f781354f23bc00d0625ef29ed1337011f69c73434ac56a5edc2250624730dfa6dfe5fa2c9e623e9a1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}