{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40154",
    "entityType": "User",
    "nonce": "0xb94a96d320db89f96f24b1c7495153a533b9a328a0a522fd7436ea7a7373026c",
    "signature": "0x573cf08fb25bc366dd94780011acdee6cf7338209ba6beb4d26e9d47e59425bf46fa9b6f39bbe9103066fa3553cd6f9abf6c5830554ce64ce64d0027064e4c431c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}