{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x47c6ebec457c6be71020e775cf714fc8b4ee3711845a7b1a69200aaa3611f8ea",
    "signature": "0xd6fc6f1d3c53f4c2ee23ad7e5a9682bb0402ce5970d0a0235e5ad7dcce5bd8832585d9eb478886b37bebfde2dd2efc6c180480d882d95d204ae8a52dff4983b71c",
    "signer": "0x7b5216D134ff2da4B5Fd69Cc70Ccc2bFb8a52b32",
    "userId": "109846124"
  }
}