{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99776",
    "entityType": "User",
    "nonce": "0x6483369ab256ce432d788531d4e3f49032ae995b39cac34f7184320ea979e25f",
    "signature": "0x0d0522c923bd694d2857ee7aefa3ce2c466f6f3937dfffe765f7be56eab7d06c64c6e6f97e0401910479e5da68f58998af68081f64a8d0e2672cc398c6bed3821c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}