{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x6b8b592587b92f52e68a0b24e13b9416d294a96d96c66bf331463843ed4f747d",
    "signature": "0xa4280a275d7147b95274708fbb06404bc054e7fd34a328b20966ba45bf02cfad33e57c43ac69cad56b28e2deebf7df34f903823337c1a1e017dfe8f162b3d4db1b",
    "signer": "0x1e9F846fdf1a89ba11e2D67fb4831B7E14ae8940",
    "userId": "617992566"
  }
}