{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29907",
    "entityType": "User",
    "nonce": "0xd18d8bd3f288998cb9f19d28fe519c1c5fb71a42f0b93ca9d2a79463666d0b58",
    "signature": "0xc82cd6440921406ac13b33875d50aaae487f22ac50f81b5d4dc961bc28e78250674e9d4cc2e7e9959afd233b1377bfc84f28c853a3b4ebe02f82c076714ba93f1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}