{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe877bd91a844a244f7373cd95164535bb15683f769c9d7eaad335d8276c64a3a",
    "signature": "0x8613a0a7de0a076794d930b78ebe22943e2f33a51e35b871b0b1ff14943cddec16d31de620d9e90f975b311332f50480cefb03e5bceae1933b300ca00d601eab1b",
    "signer": "0x80bB52585744a51EFA08f3a3C754ee86Cb12b37C",
    "userId": "87303608"
  }
}