{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1480561",
    "entityType": "User",
    "nonce": "0x6910fc905eb34c09a6ea02097a9a2d1a975698dde6e865788f4d9fcc6b0a4eea",
    "signature": "0x890422bbfc780015fa067affab4856efb7697c763c0ef6d7b19ffb192a8d4dae140864d092c504922395b44ba4d9c592efcec0bd10ef62ea22f65f122c307bcc1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}