{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0xf2cd3e2d487c5caf55da13f559270953b842810fbca0c790b2c381e425cc023b",
    "signature": "0x1497bf9b4de5a9f2c4ce4a08e83a8b9471a5be0a35c9c5a877d8cc2cdd728b2a38b7edd408300eed2631a1db0a0e4c5c9f7f05ec1b96c2d5e46cf83b1bc8cd211b",
    "signer": "0xB3dF21A0C9a14a4A615A2BE0b74dB4dA132C9909",
    "userId": "554275880"
  }
}