{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77516",
    "entityType": "User",
    "nonce": "0xf498b63c9ee291428c9a2fd8ec89e50e5021e21fd4766dde70e8229a02a47512",
    "signature": "0xd699df4c69c26c899f084d2c70cc4b5f9ac02ff565de04f28786557f0e2fb0c93c2d2d3c78ef0cd1b9e98bea6772b98e9d5c309a3ea1a20fbeae5250bbfd5dd71c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}