{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3d2efb73da104f93c91d74f686866ed67e0145e69f12e88890131c89da319de1",
    "signature": "0xefdf934ffb18f1372b8caa245b044a3d604e09c08fb158058f63a6a696c2a3627ef55cd836d83214432abbe935ad0fbd7351da46e2c33c00338bbf8df0d60cab1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}