{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xc97cb5f89c412c6ed999633104c6775929c5979c70fb90586b74c27a58b7cd19",
    "signature": "0xe5574cdf13089b8da86552875ab1d40a7b008b5d95b0ad71520da20c7ede5b1d137ecf85e0f0521eed317de36f29e757de348a93a547f09c09c526d3962a8c611c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}