{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52309",
    "entityType": "User",
    "nonce": "0x6d1463189febfa7562635b661bfdf790a65ee4869da168bfcb50508e75134516",
    "signature": "0xdebdcd5c6ebec14f3348bb32f7c36ceeff4b330978f2e4273e5b822f67f50e1753ece3e0e666a9e3e920c82b75f4f5825a49ae53dd786bcedfe1cda54dd145311b",
    "signer": "0xa78be2ca17AF5A70B2D7564b322d3Ca7b1340DAd",
    "userId": "203070"
  }
}