{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "761344",
    "entityType": "User",
    "nonce": "0xa9504f0164019d0452e8699c09e4aa1728358ebf757f87d4c0f726b351e6206d",
    "signature": "0x63767167cc094866672f323eecb815a93703fc12945858c4b41dda7f9fc2a6037d63c62fb87c4696a2f141304afa6fbf19f7dda9fefde05fda04eaf7c13e1c571c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}