{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "361552548",
    "entityType": "User",
    "nonce": "0x23069896a0de53e4eabb6e1c2902f2fdc249059814d793e97f850d5deb6a2062",
    "signature": "0xba3d9d50597b9aa86695f0fac08e2d24b6b4894a18330f3fda2f0c170bf316b97ac8a95a6c1e21758bcd5ba868e2fa4c3ad04c8fe9e7a2123c2696d2857903011b",
    "signer": "0x375bd665fA3506eD11cF4f08304c6A7522c259EB",
    "userId": "927045647"
  }
}