{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc430ac6c99de426bdc44c2bca2b7f9a7b478f74c9f845fde0d7ba21fc9b1e297",
    "signature": "0x5bdd5bc1a1461c5b472c00686a60b2540fafc1864fc1f648ca8f92ac9cdcc10117fba57922f6f3b2de5d8948eb3c04efc63a1ffb349597d555d6906234a3a9b51b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}