{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217374",
    "entityType": "User",
    "nonce": "0x435464985f1c14ccb5a854b7f01e5e87f00fae3dea9f18ca109a41c328e06e4f",
    "signature": "0xb0673774370b809389b8e210af89de89dc269ace4ca61298f13a51fb20e9293b43d9f00d89d8de5488a0fe22fa5007c68cf6e180f37291d614404f0a0153cfab1c",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}