{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5f08d939d0b164bac46c6bf73bfeb71e77d6a4d4488b8f26d633ddd278c84589",
    "signature": "0xbdb06ec9826dd5f9a4e0486330592fd2b7b1a7edc0f840a935e69f3dbe8eb1355bb1c579e99fae27b25a58388acdc600edfaef088c5d1f20a14edd9759104dad1c",
    "signer": "0x89715A6F0c23C84cE71166083899D25bE26BfBC1",
    "userId": "952196459"
  }
}