{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0x98b99a7ea93cc0b3dc5165dae76b694ef5d82f26f3c9e4f1fec5452cba98dac3",
    "signature": "0xb7019b0328201710f5276a33b2ad5bc70823e4dabbba82aba5b79cc0cf514d2b1c2d50ceeab4c52eb23cba9af9300b7a91089c84ec14226a7ef2efbc99a1b1f01b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}