{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74761",
    "entityType": "User",
    "nonce": "0xab295ae4abc194976e14f22a7e20fca9a038b7f0bc7e1ac3dd29e024cd8ccd7c",
    "signature": "0x631b95490b6435b2cb10bcac0a84811c67b862a9bcd60d5a2af4bf6fabfbe8b9221b91d366982d5ec92c9b1ded61aa9bbbba192ca68e49a4ad7ff137c232eb5f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}