{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99443",
    "entityType": "User",
    "nonce": "0xd7948e18a30286e08f65a6b58edb3e859f84793f68c01eda639ad8e2a0376d2e",
    "signature": "0x4be0782df4a7e01b4c8e9fe5b2a94db176f9e2e1b3dac28cba690cb4b1ace08122943486293b566570a25b933426a4c7caaba2cdba28f518227cce5f4080f2be1c",
    "signer": "0xEa3dcE1dCa958ff05294971CA40a732eA317E7A6",
    "userId": "573967897"
  }
}