{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa46f63f411bfba6da8587ed06c59c2afef8bb752b11b2e403e4bce270a444c99",
    "signature": "0xd4007cd3b43ed17bce19c72bda3bcf5a72301e81bbb8c10b8608375808a7bd754c4ed8d4e742585cdccf86c7fa2b181ccd988a410f9693e16f388a9e3b7c16271c",
    "signer": "0x61b8830FBaba8B7dAacD4324D572630583185735",
    "userId": "800292630"
  }
}