{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "997911717",
    "entityType": "User",
    "nonce": "0x91c8272a0b34ae7af15e7338f17e5824907869e3eb2d2e045280756e0af7a5c8",
    "signature": "0xd640da001e50b3b57160a29aa08577ba952f68bbe3703db402fcedb0624976865215774398652f63b18b8f7998bccfcd930cbea88690c06e4b2992eeb488a6991b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}