{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174894112",
    "entityType": "User",
    "nonce": "0x39fb1f8f57f78eba45171dd5c3e67e0fcc549d48fb9d9d168be45eba1a325f46",
    "signature": "0xcd7d3a8d286134115dc0139fa66f28c5797d2044fb00ee434b2c1328c47b7b88150ff1d62f214997049d75dbea9fbca4f4562390b8c312ccf45bed2c4eb7b6341b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}