{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0xc12cfbb83f9fc39d0ed72367e22f59ce04e81ebe0cf0654bbd18e14695528398",
    "signature": "0x48e085474845c5e0c045d9539c1385ab0c0b986b40e7dfa1c273c908080054cd685d96facf13cb870e4a612c1638258eb2666ef42375a8cf2bca07437db3463b1b",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}