{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x6a1c36c7c6c71ac3b2bf4afff04e894145052c9e873193961d26a318db99685d",
    "signature": "0xcfd439a8031a378e1a12fcaa01ab2bfd5f44f4619195f86fbcf4e6ee021831ca124ab62a11c6abd3d2ce33913509ac93024090da459ec1464c70b0f63202ffbd1b",
    "signer": "0x7a78569646ADa00a4d555F20fA48e9cDb9ef14F5",
    "userId": "333304008"
  }
}