{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc7c135983575e5fe83c88f016454f88d07770850fd466d44e1b401a7c6e93ee2",
    "signature": "0x8160e0eecdd566804c485c511f4a958e856e36115d1a1001c90958a47e50629d4b10c7826674f97b18dcb768fa9a97ea694a8003ca5673c66ee0a80c71e6e08a1c",
    "signer": "0x724B74153EA55dBD831703448ecb062d323aB065",
    "userId": "572024306"
  }
}