{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc9fe01f1e06c5b40e5db84b9192addb7cf0f56c5ea477342a49f0cdf2deb024",
    "signature": "0xbd14bfdb884f223b0c5633dedf331f6de956efed4acc58c1edeb1e25fbad74152df97386c62f015526ca39cc08b27e5285f64e857e9ba95e7591f11a18908a191b",
    "signer": "0xA665Acd103dC95420349634B787d5487d548d447",
    "userId": "622254588"
  }
}