{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf2fb125e6cfa76e2137d775814bcde3ed4eae0bc067db4c5103e27d808c758c1",
    "signature": "0x207bafd117d33c30a3dd9bbe6fa7e30e4d7e109a04c10296d7d54cfd247bad4815f48c55a5a40501cd16189c209553eb1bc565ee112683f5ab7521aeb1bc85291b",
    "signer": "0xFFa47Ef31b52CcEEA1CE9d5e20cbc9f8D59b6915",
    "userId": "655264080"
  }
}