{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x0439110a57690efd0b25545c440af0b3d012ce23ed5e86b95de527a3e5484d1d",
    "signature": "0x5b9a15450fe8a861eb56d13850f82dd5c51fa20e017cb3e2f909d00a4352d8ee6e1314809622bb2c98264e35756298f182214f68c76f26ed9102bf7085f5a2ce1c",
    "signer": "0xE280E847d2A686a5B17DF698d98323E53A33789a",
    "userId": "915319400"
  }
}