{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1040",
    "entityType": "User",
    "nonce": "0x2605189244989688cfe4843edf5ce5edb452a82f8dc9a6262f5eb6eead56a257",
    "signature": "0xe523b4ef11af6cb3e0f868207b964a4732f57fba3cdcd8723616ab23555beed37843e4618382dfffb9facb9f7b4a38e57448a819c6e50c03c64244ff00e5f6761b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}