{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "630960",
    "entityType": "User",
    "nonce": "0x7e65743f66d5454d5f571f764dc402472b0deeb2953025993bfc25a667f58f2c",
    "signature": "0x63a7e563d0f82988058bc88a9914a7358754d0b96181c2b420b74a58c8521a863ea8b179900faa2cd3f7216a367351a7be786fae959debd5ffafd86531ca01651b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}