{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755827864",
    "entityType": "User",
    "nonce": "0xdad2aec08a8ae441245817ee8e4c42ba42a3994f69d166c34a9d8e269b43b24c",
    "signature": "0xd3b6471594ba3d696d3b03572d78a9a4090ee8400b33dbaa9ffcb11f30e02e775534516c910ea79c16b0a4e5cc5581686f8ca1b255a049f3e1ab40a8787852221c",
    "signer": "0x38b7AB9474A04dF6f214127Fdf6c1ADaADF5926E",
    "userId": "571039733"
  }
}