{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x0571c62f36cc88871403538333d47aca323ade05ddafd22709e7101e6c028115",
    "signature": "0xde843439bd725e2d322f622c001381e452968d2783898f5fdadc8017246f16337dc1cc885ffc12f451820f123e81dc2b24adb73c3abda77c6d064f603e2783ed1b",
    "signer": "0xf86eFbd04a21E17dBD9908C016306c8211e740B4",
    "userId": "770730210"
  }
}