{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x866b05cb683500f2ce7eb5270513eaea5aa0596a8a39d87877642380d6abfed6",
    "signature": "0x2aa051e4a6cbcd88e920d5bd4f83eaa4831a2e5283096e83f8ba9a4e46e8d40e23430394f7044795c321d1b7eb0234344a82bf269f8d8d2230fa3510783575561b",
    "signer": "0x2d179f6eC2BA69eEbB8aA94b02622BeC225b96D8",
    "userId": "104731774"
  }
}