{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x6c68176a619a2a8b36cfd03f747554402b3e67cb21dd4775de8272bc910d694f",
    "signature": "0xf5ce35d64f8afddf783ac48b68277221c8d4cd05adc67c6b774083f0ba3b1de958a1810e166dcfa8c00c53f46f7d7b1efda12052ff3b87085e4f0313c65405b11c",
    "signer": "0x7F085756012AB9d28d5Bc33213B5e221bec80739",
    "userId": "377266840"
  }
}