{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c7d8c53ff356738f31d45aa20c84827c243580e187b32196097d333c1a52d62",
    "signature": "0x83d6ed82405b3a48e9878cd403fbf46ca2239343289b344ef10c065527c52b903af4c856bf684810697ea755730a16497e70626ae3bc41be66f6e41eb37e55b81b",
    "signer": "0x8dA1fBb8C1638201E5bA074130AAfb0B7602199C",
    "userId": "297045622"
  }
}