{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xb22b75ea1656da2d9a0981a2ec027f3c8e973970b0d086627cf6ecb0173e1073",
    "signature": "0x87b97688577a94fd1e286a64f773736d85beec773a5351ce70a68bbfa3bf0f78329faaeb586b196f8f2c6192c1175ae3568e6f323fd826a876d3415b7d6e4a5a1c",
    "signer": "0x4F8e40E75E675f5be20520c4cEA0CbD7bBb999B1",
    "userId": "991796067"
  }
}