{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0x002e0dafe16201334ca62c07b4e24f0470de694a8951c6d4df84ae2d5c6c3895",
    "signature": "0x6df0f91c693dc20963afbc777481f3c6ef47ece11c6fa0ed00ab901aea5cde5034cfcb96eaf51f9239c14d191297abdfff8e19303952b3f73faddff344efd7a81c",
    "signer": "0x90508144365a4b20f9909C3C9b96a5aF240cC9F8",
    "userId": "330534898"
  }
}