{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121458",
    "entityType": "User",
    "nonce": "0x56f04c50ca457a0195998ba62d625e3400b2a8838bd5bdc728728b1aae53a00b",
    "signature": "0xa3d4b1b9b1916a53fffa312fd55775bd1a4422b1156ec426f76bfcf8f8bd377030fb8cfe852dfe1bd40063947befe608a453333db54ab54d4717a77c5fe825f71b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}