{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2de7bf0d17c3664d23e0b8dd56eb28c53d4d5c017390e8a44d4246444d603f9",
    "signature": "0x0e31d399627d1f560b8b89c7c49d539c4b827918e626fad839cafc3087fc369e3b3938393f9a462c03a0bf3b83fda81e6f49e23b4723c914cc3ceea49bb163861b",
    "signer": "0x29635bCB8417874abc2517d1eCb61f78dE63e3Ec",
    "userId": "891644412"
  }
}