{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7b504d96380a1df58ef242b0e2874491c471bb98b2323b597e0993d42a315ba5",
    "signature": "0x58763f98ca02655c71695460d0c8f4e86c2fe4824eb80a64d9e66a4fadd1db6b4ba5be8b23f7a86021e24638d891493e7e9e15af26f0a1ac83ce9875435c53031c",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}