{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf11a1461c2cb2524f394db90ec7072468ef505510fc34e631edee021830b720a",
    "signature": "0x6dc4ae11b72a0a4c440472c370d2bface9a9115f01827f269cf6a42283862a5e35834d2e86e9b1f6a1844d48e0f5625c29d2111a74b36e72b402df45855fbff11b",
    "signer": "0x2DDa304349D2D289760029ca1fF236656f7f1Dbe",
    "userId": "392231816"
  }
}