{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75700",
    "entityType": "User",
    "nonce": "0xb0a80769cfe3a23f6065ef8a48ff654f04ad60d21cc8f9f25bdeff039c09a39e",
    "signature": "0xc60655450cce4304303a210fbd80bd02175298a020e09d8fa18bf36615b1b95219519e8f16570d4aadf48a238f4ad809c7501637a242d398f9e18b95b20856571c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}